Variant surveillance helps determine if emerging mutations are rendering the virus more contagious or resistant to existing vaccines and medicines.
Johns Hopkins Center for Health Security Senior Scholar Jennifer Nuzzo discusses increased hospitalizations due to the spread of the delta variant and the debate over a return to wearing masks in public.
The world’s known coronavirus death toll passed four million on Thursday, a loss roughly equivalent to the population of Los Angeles, according to the Center for Systems Science and Engineering at Johns Hopkins University.
If hospitalizations stay controlled, COVID will begin to look less like an unmanageable pandemic, and more like a seasonal disease like influenza.
Though optimism grows in the U.S. as more and more people get vaccinated, the global picture is far from rosy.
The United States has suffered nearly one-fifth of the world’s COVID-19 deaths, even as it accounts for just over 4 percent of the world’s population.
In the past seven days, the U.S. reported slightly more than 65,000 new COVID-19 cases per day on average, a jump of 20% from two weeks earlier.
A year after the pandemic shut down the country, a growing number of infectious disease experts, epidemiologists, public health officials and others have started to entertain the idea that the worst of the pandemic may be over for the United States.
CBS News lead national correspondent David Begnaud spoke with Johns Hopkins' head COVID-19 data scientist, whose team created one of the world's premier coronavirus data tracking resources.
For the first time since November, average new daily coronavirus infections in the U.S. fell under 100,000 — well below the average infection rate in December and January.
A coronavirus mutation that appears to limit the protection of vaccines against infection has appeared in the United Kingdom, which is already struggling with a highly transmissible and apparently more lethal virus variant.