Morbidity and Mortality Weekly Report

Immunology

Fourth COVID-19 vaccine dose safe for immunocompromised

A fourth dose of mRNA COVID-19 vaccine seems safe for immunocompromised individuals aged 12 years or older, according to research published in the July 15 issue of the U.S. Centers for Disease Control and Prevention Morbidity ...

Diseases, Conditions, Syndromes

9 percent readmitted after index COVID-19 hospitalization

(HealthDay)—Among patients surviving an index COVID-19 hospitalization, 9 percent are readmitted within two months of discharge, according to research published in the Nov. 9 early-release issue of the U.S. Centers for ...

Vaccination

BNT162b2 vaccine effectiveness 92 percent for teens ages 12 to 17

(HealthDay)—For adolescents ages 12 to 17 years, the effectiveness of full vaccination with two doses of the Pfizer-BioNTech vaccine is 92 percent against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), according ...

Diseases, Conditions, Syndromes

Norovirus outbreaks have increased to prepandemic levels

The number of norovirus outbreaks increased in the 2021 to 2022 surveillance year, returning to levels similar to prepandemic levels, according to research published in the Sept. 23 issue of the U.S. Centers for Disease ...

Vaccination

Partial Pfizer COVID-19 vaccination 63 percent effective

Partial vaccination with the Pfizer-BioNTech COVID-19 vaccine is estimated to be 63 percent effective for preventing new severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infections among residents from skilled ...

Pediatrics

Vaccine coverage examined among adolescents age 13 to 17 years

In 2021, there was an increase in receipt of some vaccinations among adolescents, according to research published in the Sept. 2 issue of the U.S. Centers for Disease Control and Prevention Morbidity and Mortality Weekly ...

Diseases, Conditions, Syndromes

Gay men are cutting back on sex to avoid monkeypox

A survey conducted among American gay and bisexual men in early August found about half saying they'd cut down on sexual activity—including one-night stands and app-based hookups—in response to the global monkeypox outbreak.

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