The mayor of the second-largest U.S. city has joined a growing clamor among health experts and politicians for a radical shift in the nation’s coronavirus testing strategy - from an emphasis on the utmost accuracy to a focus on speed and simplicity.

The current plan is to have most children back in school across the UK by September. But, with winter and fears of a resurgence of the virus approaching, what role could this play in spreading coronavirus?

Airborne virus plays a significant role in community transmission, many experts believe. A new study fills in the missing piece: Floating virus can infect cells.

As grocery shopping remains a necessity during this pandemic, many people have questions about how to shop safely. We want to reassure consumers that there is currently no evidence of human or animal food or food packaging being associated with transmission of the coronavirus that causes COVID-19. This particular coronavirus causes respiratory illness and is spread from person-to-person, unlike foodborne gastrointestinal or GI viruses, such as norovirus and hepatitis A that often make people ill through contaminated food.

These simple tips will help you relax and put things in perspective — in between washing your hands, of course.

Now more than ever, running could be your ticket to getting the regular exercise you need to help both your physical and mental health during coronavirus.

Most people won’t spread the virus widely. The few who do are probably in the wrong place at the wrong time in their infection, new models suggest.

A few weeks ago, a patient came to me complaining of nausea, muscle weakness and fatigue. Her urine was tea-colored despite drinking loads of water. A middle-aged woman, she seemed worried she had cancer or some deadly disease. Her lab tests revealed significant liver dysfunction. But her symptoms were not due to liver cancer, hepatitis or other disease. It turned out she had liver toxicity from a green tea supplement that she’d heard was a “natural” way to lose weight.

On that day, at the end of January, there had been almost 10,000 reported cases of coronavirus and more than 200 people had died. None of those deaths were outside of China.

Certain natural substances have antibacterial properties, but which are safe to use, and when should a person use them?

Earlier this week, I received a voice mail from our Los Angeles-area school district with news I had been both expecting and dreading: Our students would not be returning to campus this fall. While I was flooded with emotions from sadness to frustration to even some relief, my first thought was, “How am I going to tell my children?”

A laboratory test developed by a study group from MedUni Vienna can determine whether COVID-19 patients develop protective antibodies after having the disease. Scientists from MedUni Vienna's Institute of Pathophysiology and Allergy Research discovered that only around 60% of patients who have had COVID-19 and recovered from it develop protective antibodies and, for the first time, they were able to show that some antibodies even assist the virus by augmenting it to the cells of the host. The results have recently been published in the leading journal Allergy.

From a sniffle or cough that feels like allergies to severe body aches and crippling fatigue, the symptoms of coronavirus can be unpredictable from head to toe.

Back to school in a pandemic. By Jessica Lahey and Tim Lahey