Vaccines

Yes, you can have Covid-19 and the flu at the same time. Here's what that could look like This fall and winter could mark the first surge of patients infected with both the flu and the Delta variant -- which "could be catastrophic to your immune system," one doctor says. Here's how to avoid the dreaded double whammy. Holly Yan, CNN CNN

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Confusion over Covid-19 boosters lingers as states roll out shots The sheer breadth of qualifying medical conditions and occupations, plus the lack of any proof requirements, means just about anyone who got the Pfizer vaccine can now seek out a booster. POLITICO

States are wrestling with how to dole out Covid-19 boosters after federal regulators set eligibility guidelines so broad that nearly all of the 100 million Americans who received the Pfizer-BioNTech vaccine qualify for a third shot.