Respiratory Infections News

A new analytical model suggests that more than half of all SARS-CoV-2 transmission comes from asymptomatic people, CDC researchers reported.

The weekly percentages of positive COVID-19 tests among children and adolescents paralleled trends in adults, including during months when schools were open for in-person learning, data published in MMWR showed.

Ahead of an address in which President-elect Joseph R. Biden Jr. called for $400 billion to beef up the country’s response to COVID-19, an adviser vowed that the administration’s efforts will be guided by science.

Among hospitalized patients with COVID-19 who were not on mechanical ventilation, receiving high-titer convalescent plasma was associated with a lower risk for death than receiving plasma with lower antibody levels, researchers reported.

Effective Jan. 26, all air passengers entering the United States must have a negative COVID-19 test, the CDC said.

The FDA has accepted Merck’s 15-valent pneumococcal conjugate vaccine for priority review, the company announced.

Officials announced Tuesday that the United States will make available all doses of COVID-19 vaccine that were being held in reserve and said states should begin vaccinating people not included among the initial groups for prioritization.

An analysis of data from 22 U.S. states demonstrated a more than eightfold increase in the hospitalization rate of children with COVID-19 over the course of 6 months, according to a study published in JAMA Pediatrics.

Rates of COVID-19 in U.S. nursing homes fluctuated during a 6-month period last year and were reflected in the surrounding community, according to findings published in MMWR.

Daily symptom screenings and the use of nonhospital alternative care sites could lower SARS-CoV-2 rates and costs among adults in homeless shelters, according to the results of a modeling study published in JAMA Network Open.