(NEW YORK) -- If you have a weakened immune system, the COVID-19 vaccines may have a reduced effectiveness for you. Experts say it's still very important for you and those around you to get vaccinated, but it may be necessary for those with compromised... Read More.
By PRIYA AMIN, ABC News(NEW YORK) -- Although we're hearing about vaccines a lot in the news recently, vaccines have been with us for hundreds of years.The story of vaccines and immunizations begins in 1796 when Dr. Edward... Read More.
By ZOE MAGEE, ABC News(LONDON) -- Oxford University Thursday morning announced more promising news in the development of its COVID-19 vaccine. The results from Phase 2 of its AZD122 vaccine trial, published in the Lancet on Thursday, show that the... Read More.
By JORDYN PHELPS, ABC News(WASHINGTON) -- President Donald Trump on Thursday, just days after being hospitalized for COVID-19 and as he continued to receive medical care at the White House, once again downplayed his own sickness and the threat to... Read More.
By DR. L. NEDDA DASTMALCHI, ABC News(NEW YORK) -- A few months into the coronavirus pandemic, in July, Dr. Elizabeth Klodas, a preventative cardiologist and the owner of Step One foods, saw a longtime patient: a 70-year-old man who showed... Read More.
By DR. STEPHANIE E. FARBER, ABC News(NEW YORK) -- As we continue to learn more about COVID-19, one question on many people’s minds is: Why do some people get sick and others stay healthy?Researchers are now trying to... Read More.
By EDEN DAVID, ABC News(NEW YORK) -- As the COVID-19 pandemic rages on and more people get infected and recover, scientists continue to learn about the body’s protective immune response against the virus.Emerging evidence has suggested that COVID-19... Read More.