Share on PinterestScientists are planning a trial that will determine whether or not people who have had COVID-19 are now immune to the virus that causes it. STEVE PARSONS/Getty ImagesExperts still have a lot to…

COVID-19 live updates: Total number of cases passes…
The coronavirus outbreak began in Wuhan, China, in December 2019. Known as SARS-CoV-2, the virus has resulted in more than 143 million infections and more than 3 million deaths.SARS-CoV-2 infection causes a respiratory illness called…