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Will recipients of the Johnson & Johnson COVID-19 vaccine need an mRNA booster against the Delta variant? (Reuters)

Two children under age 16 who tested positive for COVID while on a Royal Caribbean cruise were quarantined and then flown home by the cruise line. (New York Post)

As of Monday at 8 a.m. EDT, the unofficial U.S. COVID-19 toll reached 33,625,385 cases and 603,967 deaths, up over 83,000 cases and 2,100 deaths from a week ago.

Most states have been slow to adopt systems where consumers can provide digital COVID vaccine verification. (AP)

Some teens are getting vaccinated against COVID, even when their parents object. (New York Times)

Pfizer and Moderna’s mRNA vaccines produce persistent germinal center B cell responses, “enabling the generation of robust humoral immunity.” (Nature)

Johnson & Johnson agreed to pay $230 million to New York state and agreed to stop manufacturing and distributing opioids in the state as part of a settlement agreement related to the opioid crisis. (AP)

U.S. emergency departments are now being overwhelmed by people who avoided psychiatric care during the pandemic. (Wall Street Journal)

Nine entertainment events in Britain, including three soccer matches, a business conference, a music festival and two nightclub gigs, produced no community outbreaks, and only 28 cases out of 58,000 spectators. (Globe and Mail)

Despite vaccine surplus and broad access in the U.S., disparities in vaccinations persist. (Washington Post)

Deliveries of U.S. COVID-19 vaccine through the global COVAX program began this weekend, with the first shipment to Honduras. (Gavi)

Seeking healthcare can be particularly challenging for people with obesity. (NBC News)

What does all the conflicting evidence about where the novel coronavirus came from actually mean? (New York Times)

CDC reported an outbreak of Salmonella linked to frozen shrimp, with six illnesses in Nevada and Arizona, including two hospitalizations.