AskScience AMA Series: We are Bechara Choucair, Carole Johnson, and Tim Manning, the vaccine, testing, and supply coordinators for the White House COVID-19 Response Team. AUA! |
- AskScience AMA Series: We are Bechara Choucair, Carole Johnson, and Tim Manning, the vaccine, testing, and supply coordinators for the White House COVID-19 Response Team. AUA!
- Are huge Saharan features caused by erosion?
- Other than the Inuit sled dogs and Carolina dogs, are there any pre-Columbian domestic dog lineages left in the Americas? Additionally, is there much in a way of dog landrace formation in current Native American reservations?
- Can liquid oxygen occur naturally?
- What is propylene glycol in the Covid vaccines derived from?
- Could previous exposure to an Adenovirus virus based Covid vaccine, such as the Oxford-Astrazeneca vaccine result in higher side effects or lower immunogenicity in the event of a re-administration with such a vaccine updated to account for variants of concern?
- Moderna indicated it’s booster shot in development is likely to work at a lower dosage than the existing vaccine, allowing for manufacture of a far greater number of doses. Why is that?
- Why is the Oxford vaccine affected by the SA variant but not the Pfizer vaccine?
- Aren't essentially *all* novel viruses zoonotic in origin?
- Is it possible to get the corona virus after getting two doses of the vaccine? If so why?
- If the coronavirus keeps mutating to evade our vaccines, like the South African mutation, and we keep on updating vaccines to protect against the new variants, would the virus ever “run out” of new mutations to try?
- What determines if a celestial body will have an atmosphere?
- Why hasn't the US FDA authorized the use of Sinopharm vaccine yet? And when is it expected to be authorized?
- Why is the CDC Vaccine Daily Count different from the Daily Change?
- How does the influenza antigen maintain an ability to bind to human cell receptors even as it constantly mutates?
- Is there a metric for adhesive strength?
- Why does the speed increase in a divergent nozzle, when the air flow is supersonic ?
- Can bacteria orbit a bowling ball ?
- Why does the CFTR (cystic fibrosis conductance regulator) protein allow for passive diffusion of chloride out of the cell?
- How do babies acquire their gut bacteria?
- How do we know a substance is toxic without poisoning someone with it?
- What do non-human primates do with their dead? How do they mourn them? What do they do with their bodies?
- The asteroid that killed the dinosaurs is believed to have hit the Earth in the relatively shallow waters of what is now the Gulf of Mexico. If the same asteroid had instead landed in, say, the Mariana Trench of the Pacific Ocean, would the impact have been as devastating for the Earth's climate?
- How does your brain keep rhythm in music? And is it the same part that controls your ability to keep track of longer durations?
| Posted: 08 Feb 2021 04:00 AM PST I'm Dr. Bechara Choucair and I'm the national vaccinations coordinator for the COVID-19 Response Team, focusing on coordinating the timely, safe, and equitable delivery of COVID-19 vaccinations for the U.S. population, in close partnership with relevant federal departments and agencies, as well as state and local authorities. I also leads our effort to administer 100 million vaccinations in the first 100 days. Before this, I was SVP and chief health officer at Kaiser Permanente and commissioner of the Chicago Department of Public Health before that. I'm Carole Johnson and I'm the national testing coordinator for the COVID-19 Response Team. I previously served as the Commissioner of the New Jersey Department of Human Services, managing the state's largest agency including Medicaid, child care, food assistance, aging services, and mental health and substance use disorder treatment. For more than five years, I served in the Obama White House as senior health policy advisor and a member of the Domestic Policy Council health team working on Affordable Care Act implementation issues and public health challenges like Ebola and Zika. I also worked on Capitol Hill for members of three key health committees - Senate Finance, House Ways and Means, and Senate Aging - and in the U.S. Department of Health and Human Services' Health Resources and Services Administration, the Alliance of Community Health Plans, the Pew Charitable Trusts, and the American Heart Association. I'm Tim Manning and I'm the national supply chain coordinator for the COVID-19 Response Team. I'm an emergency manager, doing disaster and emergency response for the past 25 years; I've worked at the local and state level, and served in FEMA for eight years as a Deputy Administrator. I've been a firefighter and EMT, and I know first-hand the importance of having the equipment and supplies you need, when you need it on the front lines of a crisis. Right now, I work with teams across the government - from the Department of Defense to the Department of Health and Human Services - to ensure our country has the supplies we need, not just now but into the future too. We will be joining you all at 5 PM ET (22 UT), AUA! Username: /u/thewhitehouse [link] [comments]  |
| Are huge Saharan features caused by erosion? Posted: 07 Feb 2021 06:07 AM PST When looking at a detailed globe, there are some huge structures that look like the remnants of ancient water or ice erosion, but could also be an illusion of rock formation. A very clear example of this is a 700km by 500km "fan" straddling the Chad-Libya border. Most of Mauritania looks like it is "flowing" west to the Atlantic, and there is a large parenthesis shape ")" covering most of Saudi Arabia. What are these structures? Do they have a name? [link] [comments]  |
| Posted: 07 Feb 2021 07:53 PM PST Looking at wikipedia, there's been a number of extint breeds due to European contact, in North American neck of the woods...kind of curious as to whether there's much information available on existing dog populations. [link] [comments]  |
| Can liquid oxygen occur naturally? Posted: 07 Feb 2021 07:15 PM PST I was just wondering if liquid oxygen could occur naturally, on this or any other planet? We've found asteroids full of metals and minerals and such floating around in space, and it just occurred to me that it may be possible to find other things as well. [link] [comments]  |
| What is propylene glycol in the Covid vaccines derived from? Posted: 08 Feb 2021 08:20 AM PST As the vaccines have propylene glycol in them, do both the vaccines from Pfizer and Moderna derive the propylene glycol from vegetable sources or petroleum? [link] [comments]  |
| Posted: 08 Feb 2021 03:40 AM PST AIUI there's an issue with the immune system beginning to recognize the vector (the adenovirus in this case) itself as foreign with repeated dosages & that leading to a more pronounced immune response (& more pronounced side effects) after the second shot. So I'm wondering what the picture looks like if people need a 3rd & 4th shot of a tweaked adenovirus vaccine in say 6 months. [link] [comments]  |
| Posted: 08 Feb 2021 08:10 AM PST Moderna indicated it could "potentially make as many as eight times as many doses with its existing manufacturing footprint" due to the need for a lower dose. Is this common for all vaccines that booster shots only need a much smaller dose, and if so how come? For reference, the Moderna comment came from this article: https://www.bloomberg.com/news/articles/2021-02-04/pfizer-pfe-moderna-mrna-race-to-make-vaccines-for-covid-variants [link] [comments]  |
| Why is the Oxford vaccine affected by the SA variant but not the Pfizer vaccine? Posted: 08 Feb 2021 08:04 AM PST |
| Aren't essentially *all* novel viruses zoonotic in origin? Posted: 07 Feb 2021 10:41 PM PST It's been widely reported that SARS-CoV-2 is zoonotic in origin, and it likely crossed over from bats, etc. A virus that is zoonotic is one that has jumped from an animal to a human. So by extension, a virus that is not zoonotic is one that started solely in humans. I find this a bit odd. Given the sheer magnitude of various other species on Earth, wouldn't essentially all viruses start off as zoonotic in nature? Are there actually novel viruses in which their genesis is solely, 100%, in humans? My thinking is that pretty much all the human viruses we have today were initially zoonotic in nature - it's just that over time they've adapted to infecting humans very well, and perhaps over time they've evolved to no longer be able to actively infect other animals. [link] [comments]  |
| Is it possible to get the corona virus after getting two doses of the vaccine? If so why? Posted: 07 Feb 2021 11:17 PM PST |
| Posted: 07 Feb 2021 05:24 AM PST Just thinking of the worst case scenario where every time we create a new vaccine the coronavirus mutates again to get around it. Is the number of possible mutations that could affect vaccine response limited in any way? [link] [comments]  |
| What determines if a celestial body will have an atmosphere? Posted: 07 Feb 2021 02:50 PM PST I know the sun and all planets except mercury are known to have an atmosphere, alongside Saturn's moon Titan, but I haven't heard of a satellite like Triton or the Galilean moons having an atmosphere? Is there more to it besides size? [link] [comments]  |
| Posted: 08 Feb 2021 07:56 AM PST |
| Why is the CDC Vaccine Daily Count different from the Daily Change? Posted: 08 Feb 2021 07:50 AM PST I have been watching the counts of Covid-19 vaccinations on the CDC web site, at: https://covid.cdc.gov/covid-data-tracker/#vaccination-trends . It's generally up, so that's good! But, there are several different graphs that you can show: Daily Count, Cumulative, and Daily Change. I don't understand what the difference is between Daily Count and Daily Change; I would think that they would be the same, since the change in the number of cumulative shots (the Daily Change) should be the number of shots given (the Daily Count). The graphs are significantly different. Which one is right? How do they reconcile? [link] [comments]  |
| Posted: 07 Feb 2021 07:52 PM PST It seems that influenza can keep mutating so that the immune system cannot recognize it, but somehow it still can gain entry to the cell. How do so many different influenza antigens bind to the same receptor? [link] [comments]  |
| Is there a metric for adhesive strength? Posted: 06 Feb 2021 10:36 PM PST And what is the level of difference between a band aid and duct tape? [link] [comments]  |
| Why does the speed increase in a divergent nozzle, when the air flow is supersonic ? Posted: 08 Feb 2021 12:13 AM PST |
| Can bacteria orbit a bowling ball ? Posted: 07 Feb 2021 10:01 PM PST Can somthing really small but still not in the subatomical scale like say bacteria orbit around somthing big like a bowling ball or a 10 meter diameter steel ball ? [link] [comments]  |
| Posted: 07 Feb 2021 11:48 PM PST i thought chloride's concentration gradient is down into the cell (due to a larger concentration of chloride outside of the cell compared to the inside) but cftr allows for passive diffusion of chloride out of the cell. how is it that chloride flows passively out of the cell? [link] [comments]  |
| How do babies acquire their gut bacteria? Posted: 08 Feb 2021 03:21 AM PST I heard that a significant amount of human weight and waste is made up of gut bacteria. But how do we, especially babies, get it when everyone is sterilizing everything all the time? Do breast fed babies have different bacteria to formula fed babies? [link] [comments]  |
| How do we know a substance is toxic without poisoning someone with it? Posted: 07 Feb 2021 12:10 PM PST |
| Posted: 06 Feb 2021 12:52 PM PST |
| Posted: 07 Feb 2021 11:23 AM PST |
| Posted: 07 Feb 2021 10:19 PM PST |
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