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Dr. Anthony Fauci. Jonathan Ernst/Reuters Dr. Anthony Fauci supplements his diet with two vitamins: C and D. For the general public, he recommends getting enough sleep, maintaining a healthy diet, and avoiding or alleviating stress as the three most potent ways to keep your immune system strong.  "That is much more healthy living than giving…

An email obtained by Politico shows a Trump political appointee accusing career scientists at the CDC of undermining the president's messaging on COVID-19. "CDC to me appears to be writing hit pieces on the administration," Dr. Paul Alexander, a scientific advisor to agency spokesperson Michael Caputo, wrote in the Aug. 8 email. Caputo and Alexander…

Corticosteroids are a class of drugs that suppress out-of-control immune-system responses. They may improve survival rates for patients with severe cases of COVID-19, according to new research. The World Health Organization issued a "strong recommendation" for the use of steroids among seriously ill patients based on the results of seven clinical trials. Steroids are cheaper…

Reports of people catching the novel coronavirus a second time are starting to trickle in, months into the pandemic.A Belgian woman was reported to have a mild second case, three months after her first illness.And an older person in the Netherlands with a weakened immune system caught the coronavirus twice too, a leading Dutch researcher…

Classic symptoms of COVID-19 follow a distinct order, a new study found.Patients usually start out with a fever, followed by a cough. Some may develop gastrointestinal issues later.Diarrhea may be an early sign of a more severe case, according to the study.Visit Business Insider's homepage for more stories. The official list of COVID-19 symptoms keeps…