infectious disease

Slow motion sneeze footage reveals the true reach of respiratory droplets ejected from the human body.

The basic reproductive R0, along with the more malleable effective reproduction number Re, are centerpieces of most epidemiological models that are informing government responses to COVID-19.

Upon seeing pregnant women sick with COVID-19 at a University of Pennsylvania hospital, researchers there wrote trial protocols for blood transfusions to treat the disease that include expecting mothers.

The SARS-CoV-2 pandemic has revealed the limitations of R0 as no other disease outbreak has before, at a time when policymakers need accurate forecasts.

Our experience with COVID-19 has already shone a light on how (and how not) to address future outbreaks.

As communities and businesses reopen amidst the pandemic, masks—in addition to other social distancing measures—are crucial for preventing new outbreaks.

Not all masks are created equal, and how they are worn makes a difference too.

Social distancing measures prevented millions of COVID-19–related deaths around the world, according to a handful of studies, but it’s hard to quantify the effects with certainty.

Modelers try a new approach to gauge the true number of COVID-19 cases in the US by using surveillance data for flu-like illnesses.

An influenza virus identified in pigs in China has a concerning mix of genes, but experts say there is no way to know if it will evolve to be transmissible between humans.

Arizona, Florida, California, and others have seen record numbers of daily new coronavirus positives in the last couple of weeks, and that’s not just a reflection of more testing. Hospitalizations are up too.

Despite high-profile political tensions between the two countries, researchers in the US and China are working together now more than ever, according to our bibliometric study.

After stating that asymptomatic individuals are unlikely to transmit the novel coronavirus, World Health Organization officials clarify that this is very much an open question.

The Salk Institute researcher was one of the first to show that killing a pathogen isn’t the only way to survive an infection.

After initial setbacks, the country’s recent antibody screen estimates that 5 percent of the population has been exposed to SARS-CoV-2.

A clinical trial of the shot in eight volunteers suggests that it is safe and that it generates antibodies that neutralize SARS-CoV-2, but further testing is needed, scientists say.

Bluetooth-enabled technology will attempt to track people’s interactions on the British island—and potentially elsewhere in the UK—as lockdowns are lifted.

The FDA cracks down on test makers as independent evaluations of their products’ performance show a need for improvement.

A retrospective analysis of stored respiratory samples shows one patient could have been infected with SARS-CoV-2 weeks before the coronavirus was thought to have arrived in France, but a critic of the result questions whether the sample was contaminated.