How many cases of COVID-19 have been confirmed in the US? How many people have been tested? Get your daily COVID-19 update here.

Palpitations and syncope during dinner (him); arrhythmia that looks like SVT after 2 energy drinks (her). What do the ECGs tell you?

US confirmed cases of COVID-19 number nearly 5.5 million; global cases have surpassed 21 million. We summarize more of today's data from the Johns Hopkins COVID-19 interactive map.

A new survey found adolescents who have ever used e-cigarettes are 5-times more likely to receive a COVID-19 diagnosis. More results at-a-glance in our new slideshow.

The CDC reports an alarming level of pandemic-related psychological and behavioral distress including thoughts of suicide across US population segments.

The perception of marijuana's risks and benefits may be changing within the US adult population. Are you up to date? 

HCV is now diagnosed in millennials at about the same rate as in baby boomers; CDC responds with a recommendation for HCV screening in all adults aged ≥18 years.

Global confirmed cases of COVID-19 are approaching 21 million. We summarize more of today's global and US data from the Johns Hopkins COVID-19 interactive map.

A pulmonary and critical care specialist identifies 4 factors that will, in part, determine the severity of the 2020-2021 flu season and that can inform preparation.

Deaths associated with atrial fibrillation have decreased, but it still takes an average of 2 years off a patient's life, according to a first-of-its-kind study.

How many cases of COVID-19 have been confirmed in the US? How many people have been tested? Get your daily COVID-19 update here.

The investigational antiviral remdesivir in phase 3 clinical trials led to faster time to recovery vs placebo and was found to be safe.

A new survey suggests use of e-cigarettes and dual use of e-cigarettes and traditional cigarettes are significant underlying risk factors for COVID-19 among US adolescents.

Data from the Johns Hopkins COVID-19 interactive map on coronavirus cases, mortalities, recoveries, and more.

In this 8-part video series, obesity expert Donna Ryan, MD, talks about the danger of COVID-19 for obesity patients, challenges facing PCPs of caring for this population, and more.

New research presented at the American Thoracic Society 2020 Virtual meeting showed the novel Theraflu Home FluTest demonstrated good sensitivity and specificity for influenza A and B viruses.

Global confirmed cases of COVID-19 have surpassed 20 million. We summarize more of today's global and US data from the Johns Hopkins COVID-19 interactive map.

There are nearly 30 COVID-19 vaccine candidates in human trials. Confused? Here's a short primer on the old and new development platforms and the pros and cons.

New research presented at the ATS 2020 Virtual meeting shows adolescents who use e-cigarettes along with marijuana and/or cigarette smoking have significantly higher odds of lifetime asthma.

US confirmed cases of COVID-19 surpassed 5 million; global recoveries have exceeded 12 million. We summarize more of today's data from the Johns Hopkins COVID-19 interactive map.