Does immunity from a virus get remembered for longer if a recovered person is exposed continually to it? |
- Does immunity from a virus get remembered for longer if a recovered person is exposed continually to it?
- Noob Question about virus, Why there is no vaccine for HIV or any sexually transmitted disease?
- How do we know that the universe is 14 billion years old?
- Are there any viruses/parasites out there that have evolved to benefit their host?
- If the ice caps melt, how much land will still be above the water?
- How to find the most common oxidation states of transition elements?
- What’s the difference in the terms, pandemic, plague and outbreak?
- Is there COVID-19 statistics controversy ?
- Are positive cases and positive tests results the same thing?
- Ongoing health issues after Coronavirus recovery?
- Does covid-19 really give permanent lung damage?
- How long do vaccine testing phases last?
- Would a more powerful explosion always have a bigger blast radius?
- How does the military safely get rid of unexploded bombs?
- Why do people test negative after a few weeks of testing positive for COVID-19?
- When you look farther in the distance, does the universe look closer together?
| Posted: 04 Jul 2020 05:05 PM PDT I read somewhere else that after recovery, immunity from covid19 lasts around three months. Which is the amount of time our immune system spends resources on creating antibodies specific to that virus. However, does that take in account if the person is continually exposed to infected people? Is it possible for her/his immune system to get a "memory refresh"? Something like a signal in the body that says "hey, I know you can't remember coronaviruses well but you still need immunity for this"? [link] [comments]  |
| Noob Question about virus, Why there is no vaccine for HIV or any sexually transmitted disease? Posted: 05 Jul 2020 12:54 AM PDT |
| How do we know that the universe is 14 billion years old? Posted: 04 Jul 2020 05:52 PM PDT Edit: So, if we can "look back"(I know I'm drastically oversimplifying) using all of the techniques listed, can we determine WHERE the big bang happened? [link] [comments]  |
| Are there any viruses/parasites out there that have evolved to benefit their host? Posted: 05 Jul 2020 12:02 AM PDT viruses/parasites typically cause harm and even death to their hosts while feeding off them but in doing so they weaken the host to a point where they are not working at full capacity and consequently limit it's own lifespan . I understand that in doing so it hinders the immune system of the host and allows it'self more of a fighting chance to spread throughout the body - but what if the effects of the virus were beneficial instead of harmful in order to allow itself a longer lifespan on a higher-functioning host? What if a virus boosted muscle growth or acted as a sort of secondary immune system by targeting other parasites/viruses that attempt to infect the host ? I'm not talking full-on superhuman strength or an extra 4 inches where they're needed , just a little extra bump on the stats . Is there anything out there that does something similar or could evolve to do so? [link] [comments]  |
| If the ice caps melt, how much land will still be above the water? Posted: 04 Jul 2020 10:01 PM PDT |
| How to find the most common oxidation states of transition elements? Posted: 05 Jul 2020 03:43 AM PDT In order to find the conductivity ( p - type or n - type ) in semiconductors such as V2O5 or CuBr i have to know if the oxidation state of the element is maximum or minimum. The d block elements have multiple oxidation states eg: Cr from +2 up to +6 but I should be able to find the most common ones which are +2 (minimum) +3 (maximum). Is there any general rule ? [link] [comments]  |
| What’s the difference in the terms, pandemic, plague and outbreak? Posted: 05 Jul 2020 06:02 AM PDT |
| Is there COVID-19 statistics controversy ? Posted: 05 Jul 2020 01:55 AM PDT Has anyone an explanation how it is possible that COVID-19 cases worldwide are growing daily, but less people die of it ? Is the virus less deadly today then in the beginning or are we better equipped by now ? https://imgur.com/QwbfCww [link] [comments]  |
| Are positive cases and positive tests results the same thing? Posted: 05 Jul 2020 03:41 AM PDT I see different reporting adjectives regarding positive test results. Right now cnn is reporting 2,795,163 total cases, but my understanding of that number is that those are positive tests. Is it true that people would be tested numerous times once they test positive? It seems that In order to be considered recovered, a patient would have to have a negative test result. This would presume that they may have several positive tests along the way. In short, my question is: are the numbers reported people with the virus or total numbers of positive tests. If it is positive tests, therefore fewer actual people, the death toll would be higher, no? [link] [comments]  |
| Ongoing health issues after Coronavirus recovery? Posted: 04 Jul 2020 11:10 PM PDT It seems so many people have recovered which is great news. Although the government's keep saying it can also be deadly for young healthy people, is this still considered rare? Does everyone who recovers have some sort of ongoing health issue after they recover from Coronavirus? (Damaged lungs, heart, pancreas etc.). This scares me and I hope that most make a full recovery without ongoing health issues? [link] [comments]  |
| Does covid-19 really give permanent lung damage? Posted: 04 Jul 2020 02:24 PM PDT I know that it can give you pneumonia and pneumonia can leave permanent damage in your lungs. Even though that is serious, calling it permenant is a bit of a scare tactic. Studies show that generally any healthy person's lungs would heal any damage within a year or so. However I have now seen a few articles (not scientific studies) that seem to imply that covid may leave permanent damage and there is no mention of it being related to pneumonia. Unfortunately with all the propaganda going both ways, I am having trouble sorting the riff from the raff. Is there any evidence that Covid-19 possibly leaves permanent lung damage that is not from the possible pneumonia? [link] [comments]  |
| How long do vaccine testing phases last? Posted: 05 Jul 2020 01:28 AM PDT I recently read that there are two potential vaccines in the third phase of testing. From my understanding, it's the final phase of testing. I was just wondering how long does each phase of vaccine testing usually take? [link] [comments]  |
| Would a more powerful explosion always have a bigger blast radius? Posted: 05 Jul 2020 12:28 AM PDT Just going with regular non-nuclear explosion, would an explosion always have bigger blast radius if its more powerful than the other? Or are there explosives which deal more damage at the point of explosion but don't have as big a blast radius as some other lesser powerful explosion? [link] [comments]  |
| How does the military safely get rid of unexploded bombs? Posted: 04 Jul 2020 10:19 PM PDT In movies, they always show the weapons exploding in the air/space or underwater; I don't think that would be good for the environment or marine life, but it's definitely better than something accidentally going off near civilization. Is this an accurate portrayal how bombs are dealt with in real life? [link] [comments]  |
| Why do people test negative after a few weeks of testing positive for COVID-19? Posted: 04 Jul 2020 02:07 PM PDT Sorry if this is a stupid question, but I have HSV-1 and I get seasonal blisters every winter or during times of stress. I will always have it, and the only thing I can do is take care of myself to reduce the frequency of blisters. That being said, I don't know if during dormancy I would test negative for HSV-1. The bare bones that I know about a virus is that it's not likely to go away, it doesn't cycle out like bacterial infections. So why do COVID-19 patients who survive test negative? Has the virus entered a state of dormancy? Has it cycled out of the host? [link] [comments]  |
| When you look farther in the distance, does the universe look closer together? Posted: 04 Jul 2020 07:51 AM PDT How would observing 2 light sources 13 billion light years away work? [link] [comments]  |
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