We see videos of meteors falling, burning bright, ets. However they appear to always travel at a steep angle. Is there a reason why meteors can not fall to the earth at a perfect perpendicular to the earths surface?

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• We see videos of meteors falling, burning bright, ets. However they appear to always travel at a steep angle. Is there a reason why meteors can not fall to the earth at a perfect perpendicular to the earths surface?
• Is it possible to create a contagious Vaccine?
• How is it possible that the Covid19 virus is becoming less deadly over time?
• Why do some viruses or bacteria stick around forever (barring treatment) and some just go away?
• Electrons going to lower orbitals often generate light, or a electromagnetic radiation, with a frequency. How come?
• Is one side or spot of the Sun known to be hotter than the rest?
• How can bacteria develop immunities to threats if they reproduce asexually into genetically identical cells?
• Can you synthetically produce DNA base pairs? If so, could you map out a person's entire DNA strain and synthetically produce a copy of undamaged DNA from an earlier time and reintroduce it into a sick person via a virus vector to reverse damaged DNA?
• Why don’t radios get interference from light waves? Furthermore could a radio pick up light waves?
• Are 10 hour looped video files actually small because of compression algorithms noticing the same frames are being used?
• Smash equal amounts of matter and anti-matter and annihilation will occur according to E=MxC^2 . but how much energy would be released ? sum of the mass used or zero since anti matter is negative mass ?
• If car engines have gotten more efficient, have rocket engines also gotten more efficient?
• If Coronavirus transmission happens through mucous membranes, why do medical personnel all over the world use extremely uncomfortable(hot) whole-body hazmat suits, or other whole-body PPEs?
• Why are COVID cases increasing so quickly while deaths are steadily decreasing?
• What do we know about the longer-term effects of catching and recovering from COVID-19?
• How can the Mars Ingenuity drone fly when Mars is nearly a vacuum?
• What difference is there in the brain between close-minded people and open-minded people?
• When it comes to treating viral infections why aren't serums used more often?
• When gameshows say 'TEXT "WIN" to 8087', How does that number work? Is it a single phone(/device) that receives all those texts?
• Can plasma transition directly to a liquid or a solid, and vice versa?
• What are crystalline porous materials?

We see videos of meteors falling, burning bright, ets. However they appear to always travel at a steep angle. Is there a reason why meteors can not fall to the earth at a perfect perpendicular to the earths surface? Posted: 22 Jun 2020 04:44 AM PDT submitted by /u/funny_mad_scientist [link] [comments]

Is it possible to create a contagious Vaccine? Posted: 21 Jun 2020 10:21 AM PDT I know a lot of half of the information. When learning about the multiple vaccines being developed, I believe one was having portions of the virus (but not the whole code) implanted in another virus to stimulate an immune response. Along with that I believe I heard that weapons manufactures want to splice different diseases with whooping cough to create airborne version of the diseases. Is there a safe way to do this with Vaccines? And if its something that could possibly happen down the line do you think the anti vaxxers would start wearing mask then? submitted by /u/Asshole_from_Texas [link] [comments]

How is it possible that the Covid19 virus is becoming less deadly over time? Posted: 22 Jun 2020 06:16 AM PDT I read this article and wondered how it's possible that the virus is becoming less deadly / transfarable naturally? How does this happen since the virus is widely spreak, it's not like they can communicate or is human kind acting as a sort of filter where interacting with humans creates a less deadly virus. I believe something similar happened to SARS. submitted by /u/DwellerMike [link] [comments]

Why do some viruses or bacteria stick around forever (barring treatment) and some just go away? Posted: 22 Jun 2020 03:13 AM PDT Does it have more to do with the virus/bacteria itself or the part it infects? Seems like flu-like viruses all fade, whereas STIs stick around. submitted by /u/Jahwn [link] [comments]

Electrons going to lower orbitals often generate light, or a electromagnetic radiation, with a frequency. How come? Posted: 22 Jun 2020 06:22 AM PDT I can understand how e.g. radiowaves can be generated by switching an antenna on and off very quickly, and how quickly I switch produces the frequency of the wave. But what does this function of switching on and off that gives light its frequency? submitted by /u/ScaryPillow [link] [comments]

Is one side or spot of the Sun known to be hotter than the rest? Posted: 21 Jun 2020 11:05 PM PDT submitted by /u/w1zardpankac3 [link] [comments]

How can bacteria develop immunities to threats if they reproduce asexually into genetically identical cells? Posted: 21 Jun 2020 04:48 PM PDT Wouldnt the cells have the same set of genes and wouldnt there be virtually no diversity? submitted by /u/beholdbenefit [link] [comments]

Can you synthetically produce DNA base pairs? If so, could you map out a person's entire DNA strain and synthetically produce a copy of undamaged DNA from an earlier time and reintroduce it into a sick person via a virus vector to reverse damaged DNA? Posted: 21 Jun 2020 07:52 PM PDT submitted by /u/FatherAbutt [link] [comments]

Why don’t radios get interference from light waves? Furthermore could a radio pick up light waves? Posted: 21 Jun 2020 07:53 PM PDT I don't have much experience with the physics of light waves and radio waves but I do have enough that I was able to pass the exam to get a radio operators license and I just realized: if lightwaves are considered a part of the electromagnetic spectrum than does it cause any interference with radio equipment? I live near a hospital and frequently will get a lot of interference on my radios whenever they use their MRI machine and the frequencies used by those machines are much higher than that of light. submitted by /u/MrLonely_ [link] [comments]

Are 10 hour looped video files actually small because of compression algorithms noticing the same frames are being used? Posted: 21 Jun 2020 03:10 PM PDT submitted by /u/rasmus_rap [link] [comments]

Smash equal amounts of matter and anti-matter and annihilation will occur according to E=MxC^2 . but how much energy would be released ? sum of the mass used or zero since anti matter is negative mass ? Posted: 22 Jun 2020 03:11 AM PDT submitted by /u/ahtemsah [link] [comments]

If car engines have gotten more efficient, have rocket engines also gotten more efficient? Posted: 21 Jun 2020 11:18 PM PDT submitted by /u/imflamedturkey [link] [comments]

If Coronavirus transmission happens through mucous membranes, why do medical personnel all over the world use extremely uncomfortable(hot) whole-body hazmat suits, or other whole-body PPEs? Posted: 22 Jun 2020 02:03 AM PDT submitted by /u/EldritchMalediction [link] [comments]

Why are COVID cases increasing so quickly while deaths are steadily decreasing? Posted: 21 Jun 2020 09:09 AM PDT Is it just that the death rate lags behind the identified cases? Are more cases being identified due to increased testing? Is there some kind of difference in the reporting of infections and/or deaths compared to several weeks ago? submitted by /u/Mr_Odiferous [link] [comments]

What do we know about the longer-term effects of catching and recovering from COVID-19? Posted: 21 Jun 2020 01:02 PM PDT While I know that it's only been a few months so trying to get some objective reports on longer-term effects is premature. Have there been any studies on this so far? As everyone seems to focus heavily on the deaths, there's a growing number of people that have recovered, or are recovering from being infected. And there are anecdotal stories about people who say "I'm only back to 65%" or "there may be scarring on the lungs" or the like. I'm having some trouble going beyond just anecdotal stories. So, is there any hard science -- yet -- on the lasting effects of recovering from the virus, if any? submitted by /u/mlhradio [link] [comments]

How can the Mars Ingenuity drone fly when Mars is nearly a vacuum? Posted: 21 Jun 2020 08:30 AM PDT Mars Ingenuity is a drone set to be launched as part of the Mars 2020 mission next month. Mars has an atmosphere less than 1% as dense as earth's, "equal to the density found 35 km above the Earth's surface". How can a drone operate in a near vacuum? submitted by /u/Opheltes [link] [comments]

What difference is there in the brain between close-minded people and open-minded people? Posted: 21 Jun 2020 10:00 AM PDT submitted by /u/BlueVendingMachine [link] [comments]

When it comes to treating viral infections why aren't serums used more often? Posted: 21 Jun 2020 06:31 PM PDT I heard off handedly that serums might be used in the Corvid 19 and it made me think why don't more viral infection treatments take antibodies from people or animals that resist them and use them for treatments? Seems these days it's either antivirals, vaccines, or nothing. submitted by /u/Alashion [link] [comments]

When gameshows say 'TEXT "WIN" to 8087', How does that number work? Is it a single phone(/device) that receives all those texts? Posted: 21 Jun 2020 08:06 AM PDT submitted by /u/dddoug [link] [comments]

Can plasma transition directly to a liquid or a solid, and vice versa? Posted: 21 Jun 2020 11:09 AM PDT One of the first things learned in physics is the four fundamental states of matter, and how to transition between them: solids and liquids via melting and freezing liquids and gasses via vaporization and condensation solids and gasses via sublimation and deposition gasses and plasmas via ionization and deionization The first three states are all able to transition between each other through various processes, but I only learned about gas and plasma transitioning between each other. Is it possible to plasma to transition to and from another state of matter besides gas? submitted by /u/stackbased [link] [comments]

What are crystalline porous materials? Posted: 21 Jun 2020 10:05 AM PDT I'm currently trying to get a decent understanding of this chemistry research publication but there's a few terms I'm not understanding, like "crystalline porous materials" or CPMs. I tried searching a basic definition online but all sites/links related to this are just even more detailed research papers which I don't understand. Does anyone happen to know how to explain what this is for a undergraduate student? Thank you so much! submitted by /u/thomas16K [link] [comments]

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Do organs ever get re-donated?

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• Do organs ever get re-donated?
• Do we know of any diseases dinosaurs could have been infected with?
• Does the atmosphere get pushed up with sea level rise?
• What is the mechanism behind the rate of Radioactive Decay?
• Telomeres - what are they and what do they really do?
• There's a type of blood which is "universal donor" blood. Can we possibly genetically engineer an organ that is universally suitable for transportation?
• Can a hot body in front of a fan cause the fan to blow warm air?
• Does water always freeze at 32 F or can it be colder and still be a liquid?
• Why is bare, non-insulated wires still the norm for electric transmission lines?
• Do all animals have an internal compass? How does it work? How come humans don't have this ability?
• How many years after the last reported "wild" polio case, will polio be declared to be eradicated the way smallpox is?
• If someone can have COVID19 symptoms for months, can they be asymptomatic or mild symptoms for months too?
• We have active cancer cells in labs that have been grown since the 50s and don't experience senescence, would it be possible to utilise this 'immortality' to grow organs?
• What causes the rotational speeds of planets to differ so greatly?
• Does a plane have to slow down after dropping a payload?
• Why didn't tigers spread west of the urals?
• do ants take fall damage?
• Does dreaming with food/eating produces stomach acid?

Do organs ever get re-donated? Posted: 20 Jun 2020 08:21 AM PDT Basically, if an organ transplant recipient dies, can the transplanted organ be used by a third person? submitted by /u/frogglesmash [link] [comments]

Do we know of any diseases dinosaurs could have been infected with? Posted: 20 Jun 2020 05:45 PM PDT I get that paleontology doesn't get much in the way of soft tissue or the ability to look at micro organisms, but I thought I'd ask. Maybe some of the same diseases that birds get today? submitted by /u/_meshy [link] [comments]

Does the atmosphere get pushed up with sea level rise? Posted: 21 Jun 2020 05:47 AM PDT Is atmospheric pressure dependant upon the sea level, and if so does the atmosphere get 'pushed up' if the sea level rises? So at the moment it's almost impossible to breath at the top of Mount Everest because of the thin atmosphere. But if the sea level were to rise to near the top, would it then be possible to breath normally at the top of Mount Everest? Does that make sense? submitted by /u/notw86 [link] [comments]

What is the mechanism behind the rate of Radioactive Decay? Posted: 20 Jun 2020 08:10 AM PDT I was taught that after one half-life period, one half of the initial mass will break down. But when I asked why doesn't it consistently decays, meaning after 2 half-lives, all of the matter will be gone, my teacher didn't give an appropriate answer and I had to take that for granted. What is the mechanism behind Radioactive decay that makes it works that way? Why does the presence of more radioactive matter causes more atoms to decay? submitted by /u/Steki3 [link] [comments]

Telomeres - what are they and what do they really do? Posted: 20 Jun 2020 09:00 PM PDT I've heard from a popular podcast that some of modern medicine is based off of tests done with mice (common?) which are bred in captivity, as many testing animals are, I think. Said mice are said to have "elongated" telomeres compared to wild, or natural, mice and therefore are not representative of any population other than a population "being bred for testing". In other words, they have artificially elongated telomeres just by the fact that they are being bred for scientific research. I am of limited I understanding of what telomeres do and of what they are, so I am seeking a proper explanation. I will be consulting friends/family for professional references in addition to this post. My question is this: Are there studies showing that telomeres are in fact, or even just reasonably considered as part of being, shown to govern in some respect the longevity of cells and their replication? And if so, has this been addressed? submitted by /u/surveyguy23 [link] [comments]

There's a type of blood which is "universal donor" blood. Can we possibly genetically engineer an organ that is universally suitable for transportation? Posted: 21 Jun 2020 03:55 AM PDT Pretty much in the title. If I remember correctly there are a number of antigens on cell membrane which tells leucocytes that those cells belong to the organism. Is it at least in theory possible to make neutral cells so we can grow a surplus of spare organs and stop relying on donor transplants in urgent cases? submitted by /u/TopGunOfficial [link] [comments]

Can a hot body in front of a fan cause the fan to blow warm air? Posted: 20 Jun 2020 10:31 PM PDT Hopefully someone can help me clear this up. Tonight my partner was laying in front of a fan, and I was laying directly next to them. They adjusted the fan so it was blowing directly on them. I then felt warmer air blowing on me and commented that the fan was blowing their hot body heat onto me. They dismissed this and said it was impossible for this to happen. When I tried to discuss it further they told me I was "objectively wrong" and muttered something about wattage and has since continued to refuse to provide any info as to why this is a scientific impossibility. Now, they got mad enough at me for arguing with them to get up and leave, and since then the air the fan is blowing is the same as it was before their hot body had gotten in front of it. They were the only variable, so far as I can tell. There are no heat - generating appliances running, there's no hot food around, the cat was on the other side of the room, the fan was not catching fire, etc. I have no idea why this would be impossible and I don't have any clue what to even look up to try and prove it. I know that when you put a hot pie in front of a fan it'll blow warm air, and I know from growing up without AC that if you put a bowl of ice in front of a fan that it will blow cool air. Can anyone tell me why or why not a human body and a fan wouldn't interact the same way? For context, we had just been outside walking around and it's pretty warm out, and in. This feels kind of crazy to even be asking because A) I definitely experienced the sensation of warm air blowing on me as soon as the fan was adjusted to blow on them and B) it seems like common sense. Arguments like this happen a lot with this person and they are never quick to provide evidence for their insistences and are usually bothered when I try to understand...like now. So will someone here help me? I'm very curious and also a little bothered because I feel like I'm being a tiny bit gaslighted. I'd be delighted to learn that I'm not and that this person is actually right. Thanks! submitted by /u/BiggKitten [link] [comments]

Does water always freeze at 32 F or can it be colder and still be a liquid? Posted: 20 Jun 2020 09:38 PM PDT I'm just wondering, can water go below 32 degrees and still be liquid? Like I have my cup of water and it feels really to me, but it still could be above. But like in the arctic it's really cold and there is still water. submitted by /u/Just_Living_Today [link] [comments]

Why is bare, non-insulated wires still the norm for electric transmission lines? Posted: 20 Jun 2020 11:24 PM PDT Is it just cost? I live in an area that's fairly forested and there are fairly frequent power failures due to trees falling onto the power lines. I notice that some streets have insulated, twisted power lines instead - even the high voltage (edit: transmission/medium voltage), 3 conductor lines are insulted and the twisted cables seem really thick. Is seems that this has benefits for safety and for reliability in case something falls on the line. Is it just cost that makes this the exception and not the norm? submitted by /u/neon_overload [link] [comments]

Do all animals have an internal compass? How does it work? How come humans don't have this ability? Posted: 20 Jun 2020 10:36 AM PDT Always wondered how birds and fish never got lost while migrating. Anyone know why? submitted by /u/shirlee920 [link] [comments]

How many years after the last reported "wild" polio case, will polio be declared to be eradicated the way smallpox is? Posted: 20 Jun 2020 10:34 AM PDT submitted by /u/ew_modemac [link] [comments]

If someone can have COVID19 symptoms for months, can they be asymptomatic or mild symptoms for months too? Posted: 20 Jun 2020 10:42 AM PDT I'm reading lately about how some patients are in hospital for months, either needing oxygen for months, or ventilation. Is it possible for people to not have symptoms, or mild symptoms for months and be able to transmit it? submitted by /u/sc3nner [link] [comments]

We have active cancer cells in labs that have been grown since the 50s and don't experience senescence, would it be possible to utilise this 'immortality' to grow organs? Posted: 20 Jun 2020 10:17 AM PDT submitted by /u/TheSentinelsSorrow [link] [comments]

What causes the rotational speeds of planets to differ so greatly? Posted: 20 Jun 2020 10:04 AM PDT I noticed that the rotational speeds of planets vary greatly as they get further from the Sun. Venus takes 243 days to complete one rotation while Jupiter only takes 9 hours. What are the factors that influence rotational speed of planets and why does it differ so much between the inner planets and the outer planets? submitted by /u/brabarusmark [link] [comments]

Does a plane have to slow down after dropping a payload? Posted: 20 Jun 2020 09:55 AM PDT If a plane drops a heavy payload while in flight (nuclear bomb? idk), wouldn't a sudden imbalance in the forces propel the plane up suddenly? Then does the plane have to decelerate suddenly? submitted by /u/hanmango_kiwi [link] [comments]

Why didn't tigers spread west of the urals? Posted: 20 Jun 2020 06:29 AM PDT The mountains don't look high enough to be an actual hindrance for a tiger. submitted by /u/onda-oegat [link] [comments]

do ants take fall damage? Posted: 20 Jun 2020 01:18 AM PDT i didnt know how else to phrase it, but will ants get hurt if they fall from a height? this might be a stupid question my apologies. submitted by /u/damitaa16 [link] [comments]

Does dreaming with food/eating produces stomach acid? Posted: 20 Jun 2020 12:58 AM PDT I just had a dream that I was eating and my stomach is hurting. I already suffer with acid reflux and gastritis, but after dreaming of eating I woke up with a stronger pain. So, does dreaming with food/eating produces more stomach acid? submitted by /u/Ptero21 [link] [comments]

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How does the standard model of particle physics explain Newton's laws of motion?

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• How does the standard model of particle physics explain Newton's laws of motion?
• Do creatures with shorter lifespans evolve faster?
• What causes shingles (and the zoster virus in general) to manifest as a rash?
• Can an individual be continuously reinfected by a virus?
• I read that a 2011 earthquake in japan shifted the axis of the earth. Are there other events that did this?
• What exactly is the lymphatic system for and what are it’s evolutionary origins?
• Are the chances of multiple vaccine prospects for COVID-19 working correlated or independent?
• Assuming that coronavirus antibodies only last for a few months, what would this mean for immunity?
• Is carrying antibiotic resistance genes costly for bacteria? In other words, is there any selection pressure against having them?
• Why is there a high tide in the opposite side to the moon?
• Which is more efficient, high or low altitude flight?
• Why are smartphones cameras so small?
• How can someone be asymptomatic when having COVID-19?
• What is a "Cardiac filament"?
• If 0’C = 32’F then does 0+0=64?
• Can someone who has had Covid-19, and built up immunity, still spread the virus via respiratory droplets?

How does the standard model of particle physics explain Newton's laws of motion? Posted: 20 Jun 2020 04:05 AM PDT The way I understand it, the standard model of particle physics describes four fundamental interactions: electromagnetism, gravity, the strong force, and the weak nuclear force, gravity being unexplained in specific terms. Where then does Newton's "F" in F=ma come from (in particular the "applied force"), and why does it act upon aggregates of particles according to the Newtonian laws of motion? submitted by /u/Tristan_D_C_Wintle [link] [comments]

Do creatures with shorter lifespans evolve faster? Posted: 19 Jun 2020 05:33 PM PDT Maybe I'm wrong with this but my (very) basic understanding of evolution is that there are genetic mutations in a species that "win" over vast amounts of time and change things as a result. So, if you have certain creatures that only live a few years, then wouldn't any mutations happen faster if they were far more generations to travel through? submitted by /u/Fingerbob73 [link] [comments]

What causes shingles (and the zoster virus in general) to manifest as a rash? Posted: 20 Jun 2020 06:46 AM PDT Shingles is a reactivation of the varicella-zoster virus. In searching online, I haven't been able to find out what triggers the virus to exhibit a painful rash with blisters. Why is it a rash instead of, say, a sore throat? submitted by /u/tctitan [link] [comments]

Can an individual be continuously reinfected by a virus? Posted: 19 Jun 2020 07:24 PM PDT For example, if I have a bad cold and am sitting in my room all day retouching the same objects over and over, am I continuously reinfecting myself (or "erasing" my body's progress of fighting it) by taking in more of the virus? submitted by /u/jpfeifer22 [link] [comments]

I read that a 2011 earthquake in japan shifted the axis of the earth. Are there other events that did this? Posted: 20 Jun 2020 04:12 AM PDT The asteroid that killed the dinosaurs is my main question but felt that was too specific. submitted by /u/TheLifeOfThird [link] [comments]

What exactly is the lymphatic system for and what are it’s evolutionary origins? Posted: 19 Jun 2020 12:32 PM PDT I've always learned answers such as "it's important for the immune system" and also that it aids in fat transport. However, it seems excessive to have a separate vessel system just for those purposes, when the circulatory system is generally adequate for most immune response and nutrient circulation. How did the lymphatic system evolve and remain present? Did it once hold greater importance? How bad would it be if someone didn't have it? submitted by /u/lambava [link] [comments]

Are the chances of multiple vaccine prospects for COVID-19 working correlated or independent? Posted: 19 Jun 2020 07:55 PM PDT The NY Times is tracking the number of COVID-19 vaccines in each phase of human trials. If one of these vaccines fails does that mean others are more likely to fail as well, perhaps due to some underlying trait of the disease, or are these independent rolls of the dice? Do we get more information from a failed trial about if other vaccine prospects are likely to work? submitted by /u/deisjj [link] [comments]

Assuming that coronavirus antibodies only last for a few months, what would this mean for immunity? Posted: 19 Jun 2020 09:23 PM PDT There was an article in r/science that said that there is evidence that COVID antibodies may only last for two to three months. Does this mean that your immunity would end after that time period if you had already caught the virus? Does that mean a potential vaccine would only be effective for a few months? How will this affect attempts to eliminate the virus in the future? submitted by /u/PoopyButtPantstastic [link] [comments]

Is carrying antibiotic resistance genes costly for bacteria? In other words, is there any selection pressure against having them? Posted: 19 Jun 2020 12:28 PM PDT submitted by /u/shaokim [link] [comments]

Why is there a high tide in the opposite side to the moon? Posted: 19 Jun 2020 01:40 PM PDT It makes sense why there would be a high tide facing the moon, because the moon's gravity pulls the water. But why a high tide on the opposite tide, therefore 2 high tides a day? submitted by /u/Peshed [link] [comments]

Which is more efficient, high or low altitude flight? Posted: 19 Jun 2020 09:20 AM PDT I know nothing about this but I was just considering air density and flight. I think low altitude has higher density air which would make more friction on a fuselage and slow an aircraft down BUT the engines would have more thrust/material to push. In very high altitude there would be less friction but also less air/material for the engines to push so they might have to work harder to go the same speed? I suspect that it might depend on what speed an aircraft wants to go. Also, getting to altitude might remove any efficiency advantage of high altitude flight. Think Solar Impulse versus the X-15. Which is more efficient, very high or very low fight? submitted by /u/okworks [link] [comments]

Why are smartphones cameras so small? Posted: 19 Jun 2020 04:48 PM PDT As I understand, the bigger the sensor, the more light goes in and the better a image is. So, why must smartphone cameras be so small? There is plenty of space on the back submitted by /u/Duc_de_Guermantes [link] [comments]

How can someone be asymptomatic when having COVID-19? Posted: 19 Jun 2020 08:10 PM PDT A detailed explanation... submitted by /u/pulsarchief [link] [comments]

What is a "Cardiac filament"? Posted: 19 Jun 2020 02:50 PM PDT I was reading a bit in the famous Gray's Anatomy about some functions of the left recurrent laryngeal nerve's unusually long pathway. One section says: "As the recurrent laryngeal nerve curves around the subclavian artery or the arch of aorta, it gives several cardiac filaments to the deep part of the cardiac plexus (Gray's Anatomy, 1980, p. 1081). I've tried to find out what exactly that means, but I'm struggling to understand what "cardiac filaments" are. Any help would be most appreciated. submitted by /u/GeoPeoMeo [link] [comments]

If 0’C = 32’F then does 0+0=64? Posted: 20 Jun 2020 02:19 AM PDT submitted by /u/thealchemistpro [link] [comments]

Can someone who has had Covid-19, and built up immunity, still spread the virus via respiratory droplets? Posted: 19 Jun 2020 11:09 AM PDT Let's say you get exposed again after building immunity. Is there a period where the virus is able to spread before your immune system can kill it? submitted by /u/Sk4Ll12vk [link] [comments]

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