Heading in the right direction: a comparison of COVID-19 scenarios
Researchers in Brazil repeatedly measured antibodies against SARS-CoV-2 in blood donors, and found that in the Amazon, close to half of donors were positive for antibodies.
Scientists study if COVID-19 variants could be tackled with current vaccines
Viruses mutate naturally as they replicate. Generally, most mutations are not a serious concern for human health or public health strategies.
Our immune system remembers SARS-CoV-2 and appears ready to fight back!
When our immune system recovers from any given infection, it often remembers the aggressor long after it is gone. This process is referred to as immunological memory.
The race to vaccinate as many individuals continues
This study reported that individuals with pre-existing immunity have 10-20 times higher SARS-CoV-2 antibody titers than naïve individuals after the first dose.