New heart problems discovered post COVID-19; virus mutation may make vaccines more effective More than three-quarters of recently recovered COVID-19 patients had heart muscle problems show up during magnetic resonance imaging (MRI) tests, German doctors reported on Monday in JAMA Cardiology. In some patients, the heart may be "in serious trouble as a part of COVID-19 disease," Dr. YahooNews

By Nancy Lapid

WHO says COVID-19 pandemic is 'one big wave', not seasonal The World Health Organization on Tuesday warned against complacency about new coronavirus transmission in the northern hemisphere summer, saying that this virus did not behave like influenza that tended to follow seasonal trends. Reuters Editorial U.S.

GENEVA (Reuters) - The World Health Organization on Tuesday warned against complacency about new coronavirus transmission in the northern hemisphere summer, saying that this virus did not behave like influenza that tended to follow seasonal trends.

Vitamin D helps the body fight coronavirus, major Israeli study claims 'Sunshine' vitamin is like a steroid, researcher says, urging public to head outdoors; another scientist urges caution, saying other factors may be at play timesofisrael

Good levels of vitamin D, the so-called sunshine vitamin, help people to fight the coronavirus more quickly and effectively and reduce chances of hospitalization, Israeli researchers have concluded.

However, others are cautioning broad conclusions, saying other factors may be involved.

The U.S. has more COVID-19 testing than most. So why is it falling so short? The United States might have more COVID-19 testing capacity than any other country. So why have we seen laboratories overwhelmed and many patients again waiting a week or more for results? Allison Martell U.S.

(Reuters) - The United States might have more COVID-19 testing capacity than any other country. So why have we seen laboratories overwhelmed and many patients again waiting a week or more for results?

Trump National Security Adviser Robert O'Brien Has Covid-19 President Donald Trump’s National Security Adviser Robert O’Brien has tested positive for Covid-19, according to people familiar with his situation. Jennifer Jacobs,Saleha Mohsin Bloomberg.com

Donald Trump’s National Security Adviser Robert O’Brien tested positive for Covid-19 but the White House said his infection poses no risk to the president or Vice President Mike Pence.