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Share on PinterestResearch from Sweden suggests that people with mild or asymptomatic cases of COVID-19 may have immunity from future infection.Most people who are exposed to SARS-CoV-2, the coronavirus that causes COVID-19, only experience mild symptoms or none at all. However, the infection can still pass from them to other people, and the overall case…

May 1, 2020, 5:00 a.m. ETIn the midst of national shortages of testing swabs and protective gear, some medical suppliers and health policy experts are looking ahead to another extraordinary demand on manufacturing: Delivering a vaccine that could potentially end the pandemic.Making a vaccine is not easy. More than two dozen companies have announced programs…