William A. Haseltine, Contributor

Author's posts

Cheap, Daily Home Tests Are The First Step To Containing The Pandemic

We can use something that is already available and at our disposal: rapid point-of-care and home diagnostics combined with contact tracing and isolation of possible transmitters.

What Restarting Sports And Reopening Schools Have In Common

Studying and learning from the successes and failures of so-called sports “bubbles” helps us think through the decisions we now face on whether to reopen schools—and if they do reopen, what we might expect.

Two-Step Testing Could Slow Covid-19 Transmission Dramatically

The two-step method is not only a better way to test, but could potentially reduce transmission by 50 percent or more—and do so quickly.

New Evidence Suggests Young Children Spread Covid-19 More Efficiently Than Adults

Two new studies from different parts of the world arrived at the same conclusion: that young children not only transmit SARS-CoV-2 efficiently, but may be major drivers of the pandemic as well.

India Approves Antigen Test To Speed Detection And Management Of SARS-CoV-2 Infections

India recently approved a rapid antigen test, which will be used in conjunction with standard PCR tests, to detect SARS-CoV-2 infections.

An Investigation Into The Basis For The Loss Of Smell As An Early Symptom Of Covid-19

The loss of the sense of smell and taste has proven to be the most reliable indicator of early infection of the SARS-CoV-2 virus.

The Complex Pathogenesis Of Covid-19

While many aspects of Covid-19 remain difficult to pin down, we now have enough data to identify four broad stages of infection that can guide us going forward.

Covid-19 Might Be Far More Widespread Than We Think. Here’s What We Can Do About It

Official case counts in the U.S. might be underestimating the actual number of infections by a wide margin. What then?

A Key To Understanding The Race For A Covid-19 Vaccine

With eight candidates in human trials and almost 180 more in the wings, publications and press briefings touting progress are imminent. Here’s what to keep in mind as you decipher the results.

What Does Disappearing Immunity To Covid-19 Mean For A Vaccine?

Studies show that immunity to Covid-19 may fade quickly. Does this impact our ability to develop a successful vaccine?