Natural infection with COVID-19 offered protection from reinfection when the gamma and delta variants predominated, according to a new University of Michigan study that also provides levels of antibodies needed to protect against reinfections.
A University of Michigan epidemiologist believes that COVID-19 will become a seasonal disease, likely in the fall and winter seasons.
The country has managed to avoid a variant-fueled spike in coronavirus cases. Scientists say we were lucky.
India has stepped up its coronavirus vaccination drive amid a deadly second wave of infections. The country on Sunday breached the 100,000 daily caseload mark for the first time since the pandemic began.
Epidemiologists in India say that there is only one likely explanation for the decrease in new cases: The virus is finding it harder to spread because a significant proportion of the population, at least in cities, already has been infected. The decline is not related to a lack of opportunities for transmission.
Vaccine rollout in the United States has been undeniably slow. And while we wait, worrisome new coronavirus variants are emerging, heightening the urgency to control the pandemic. Some variants, including ones first identified in Brazil, South Africa and the United Kingdom, have mutations that help the coronavirus evade parts of the immune system, raising the specter that some people might face a second round of COVID-19.