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COVID-19 Basics

What is a coronavirus? How do you catch COVID-19? How long is this going to last? Who is at risk? We teach you the basics so you’re equipped with the right information to make sense of it all.
November 21, 2020
|
Alyssa Bernanke, BA
November 21, 2020

What is “excess death”?

The excess death rate is a measurement of how many extra deaths there are this year, as compared to previous years.
November 14, 2020
|
Brad Kern, PhD
November 14, 2020

Can I get COVID again if I’ve already had it?

Some studies say that reinfection with COVID-19 is possible, but we need more data to say how often it happens.
October 9, 2020
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Gretchen Snoeyenbos Newman, MD
October 9, 2020

How do we know how many people have died of COVID?

Cause of death is determined by doctors and includes all the factors contributing to someone’s death.
September 20, 2020
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Alyssa Bernanke, BA
September 20, 2020

Vaccine trials should include Black and brown people.

Including diversity in vaccine trials will help ensure that new treatments are safe and effective for everyone.
September 11, 2020
|
Brad Kern, PhD
September 11, 2020

What is T-Cell Immunity and how does it relate to COVID?

T-cells are an important part of the immune system and may play a role in protection against COVID separate from antibodies.
August 29, 2020
|
Gavin Harris, MD
September 14, 2020

Will COVID-19 be worse in winter?

Cooler, drier air may help COVID-19 spread. And with people spending more time indoors, fall and winter could mean case numbers will rise.
August 7, 2020
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Alyssa Bernanke, BA
September 14, 2020

What is pooled COVID-19 testing?

Testing lots of people for COVID-19 can be made more efficient by using pooled sample testing - using a single test for multiple people.
August 4, 2020
|
Brad Kern, PhD
September 14, 2020

I was possibly around someone who had COVID-19. Should I get tested?

If you think you’ve been exposed to someone with COVID-19, self-quarantine for 14 days and get tested if any symptoms develop.
August 4, 2020
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Gideon Meyerowitz-Katz, MPH
September 14, 2020

No, bald people probably aren’t at higher risk of getting very sick with COVID-19.

Some doctors have wondered if bald people are at higher risk of getting very sick with COVID-19. The two studies done so far are not convincing.
August 2, 2020
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Alyssa Bernanke, BA
September 14, 2020

What are superspreading events?

Superspreading events occur when a single infected person spreads the virus to a large number of people, usually due to attending a large, indoor event.

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Recommended Reading

Start with these important articles, hand-selected by the resident doctors.
Can I get COVID again if I’ve already had it?
How do we know how many people have died of COVID?
Vaccine trials should include Black and brown people.
What is T-Cell Immunity and how does it relate to COVID?
Will COVID-19 be worse in winter?
The Plandemic Video gets it wrong.
Not finding the answers you’re looking for? Ask us a question

COVID-101 is your resource for reliable, easy-to-understand answers to all your questions on the COVID-19 pandemic.

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