Diseases, Conditions, Syndromes

Does decades-old smallpox vaccination protect against monkeypox?

Health officials are scrambling to stretch scarce doses of vaccine to slow the mounting monkeypox outbreak, but do older people already vaccinated as kids for the related but deadlier smallpox virus already have protection?


Simultaneous flu vaccine, COVID-19 booster safe

Simultaneous administration of COVID-19 mRNA booster and influenza vaccines may increase the likelihood of systemic reactions, according to a study published online July 15 in JAMA Network Open.

Diseases, Conditions, Syndromes

U.S. SARS-CoV-2 seroprevalence high based on blood donations

The combined severe acute respiratory syndrome coronavirus 2 seroprevalence from infection or vaccination reached an estimated 94.7 percent in December 2021, according to a research letter published online June 13 in the ...


Replication-deficient JYNNEOS recommended for orthopoxvirus

The replication-deficient Vaccinia virus vaccine (JYNNEOS) is recommended over the replication-competent Vaccinia virus vaccine ACAM2000 for individuals with occupational exposure to orthopoxvirus, according to research ...


Rates for measles, other vaccinations dip for kindergartners

A smaller portion of U.S. children got routine vaccinations required for kindergarten during the pandemic, government researchers said Thursday, raising concerns that measles and other preventable diseases could increase.

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