Stories by Tanya Lewis

An anesthesiologist at the University of Michigan describes the new influx of patients and what this may mean for the pandemic’s trajectory

The risk of COVID transmission in schools is very low if precautions are taken

Today we bring you the fourth episode in a new podcast series: COVID, Quickly. Every two weeks, Scientific American’s senior health editors Tanya Lewis and Josh Fischman catch you up on the essential developments in the pandemic: from vaccines to new variants and everything in between.

One of the country’s top epidemiologists explains how population-wide use of rapid antigen tests—in combination with other measures—helped get its outbreak under control

Today we bring you the third episode in a new podcast series: COVID, Quickly. Every two weeks, Scientific American’s senior health editors Tanya Lewis and Josh Fischman catch you up on the essential developments in the pandemic: from vaccines to new variants and everything in between.

Differences in life expectancy, car ownership and language may contribute to the racial and ethnic disparities

Today we bring you the second episode in a new podcast series: COVID, Quickly. Every two weeks, Scientific American’s senior health editors Tanya Lewis and Josh Fischman catch you up on the essential developments in the pandemic: from vaccines to new variants and everything in between.

On the anniversary of this global disaster, we take a look back at some of the biggest mistakes, surprising successes and lingering questions

Today we begin a new podcast series: COVID, Quickly. Every two weeks, Scientific American’s senior health editors Tanya Lewis and Josh Fischman catch you up on the essential developments in the pandemic: from vaccines to new variants and everything in between.

An analysis of incomplete data shows they had a death rate higher than that of loggers and may have rivaled fishers for the most perilous profession

Scientists make and treat a 3-D-printed model of a ballooning blood vessel

Scientists are debating whether to delay, skip or halve doses. But untested tweaks could shake public confidence

Forensic psychiatrist Bandy X. Lee explains the outgoing president’s pathological appeal and how to wean people from it

The FDA issued the emergency use authorization for the vaccine late on Friday. And immunizations of health care workers and long-term care facility residents could begin within days​

Stephen Hahn describes how the agency will evaluate vaccines for emergency authorization

The incoming U.S. president must help skeptics see benefits in masks and persuade Congress to spend more money on testing and protective gear

Stay safer on different forms of transportation

Scientists have created an atlas of cardiac cells in six regions that could help chart what goes awry in heart disease

Climate change, nuclear arms control, the pandemic and more will be determined by whoever wins the White House and Congress

In a case on the Affordable Care Act next month, a conservative court could take away protections for preexisting conditions

From a human-made virus to vaccine conspiracy theories, we rounded up the most insidious false claims about the pandemic

An expert on airborne virus transmission explains the risks of talking loudly without wearing a mask in an indoor environment

Harvey J. Alter, Michael Houghton and Charles M. Rice share the award for identifying the virus behind the blood-borne liver disease

A noted bioethicist says the president’s case could trigger calls for greater transparency about his health—and spawn conspiracy theories