Excited to be enrolled in a free class on coronavirus. Today's lecturer is David Baltimore of MIT and CalTechn. #Follow this thread for live tweets.
Epidemiologist is giving a free online lecture through MIT about covid-19. The decline of covid-19 cases in the summer may have misled people into thinking it had gone away. It didn't. The decline may have shown the "seasonality" of virus.
These are your lungs. These are your lungs on covid. Any questions? From , who is giving a lecture on covid-19 immunology right now.
A single coronavirus can make hundreds of copies of itself inside one infected human cell, in just 8-10 hours.
The novel coronavirus makes way fewer mistakes when copying its genome than viruses such as HIV, so it has fewer mutations. Why? Because it has an excellent copy editor. In comparison, HIV mutates constantly b/c it can't fix its mistakes. #copyeditors
If you'd like to read more about Michel Nussenzweig's lecture on immunology on covid19, read back over this Twitter thread! /13
Michel Nussenzweig: "In theory, the T-cell is NOT going to be effective in preventing the infection." Antibodies do that. But T-cells can prevent severe disease. You may become reinfected with covid, but hopefully have less serious illness second time. 12/
Coronavirus genome is huge -- 2x-3x larger than most RNA viruses. They approach the theoretical limit to how big an RNA genome can be.
Michel Nussenzweig found a way to sneak Elmo into his lecture on covid-19 immunology. 8/
LIVE: Dr. Britt Glausinger of UC-Berkeley is leading a free lecture on the biology of COVID-19 NOW through this MIT course.
LIVE: Epidemiologist says widespread antibody testing can be a better way to know what's going on in an outbreak than PCR testing, providing slightly faster answers.
LIVE: Epidemiologist compares benefits/limitations of viral tests vs antibody tests. Testing for virus catches people while they're still transmitting, but will miss people. Good for surveillance when testing is frequent.
LIVE: Epidemiologist is doing a pilot study to test blood, looking for antibodies, to reconstruct introduction of virus into U.S. He asks, "Could we have early warning system for viruses like we have for hurricanes?"
gives us Immunology of COVID-19 for Beginners. The first immune cells to respond, when virus gets in the lung, belong to the innate immune system: neutrophils and macrophages, all-purpose fighters that arrives before antibodies are made.
It's really important to listen to people like Michel Nussenzweig on a regular basis, because it reminds us that most of us really know very little and should listen more, talk less. 9/
Michel Nussenzweig is talking about covid-19 immunology right now. 1/
LIVE: David Baltimore said he was surprised to look at this map and see that the novel coronavirus doesn't seem to be spreading effectively in Africa, with the exception South Africa, a more developed country.
Epidemiologist : Advantage of antibody testing for surveillance is that antibodies persist in your blood for at least months. So a test for the virus may turn negative once your body clears it; an antibody test would still be positive.