Data from the WHO shows 81% of patients with severe COVID-19 received antibiotics, while an NIH study found a 32% increase in resistant, hospital-acquired infections during the pandemic.
Study suggests medical masks may offer similar protecion as N95 respirators, but experts say hold on.
Public health professionals use some terms imprecisely, others incorrectly, and still others technically accurate but almost sure to be misunderstood by the public.
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Up-to-date COVID-19 data
More than 70% of visits were by adolescents 12 to 18 years old.
Of US measles cases, 59% weren't vaccinated and immunization status wasn't known for 24%.
Flu levels trended downward for the second straight week, as markers for COVID and RSV continue steady drops.
While these associations were seen across all age-groups, they were more pronounced among older people.
Multiple sclerosis was associated with a 7-times-greater rate of COVID-19 hospitalization and quadruple the risk of death.
The new version offers longer shelf-life advantages and paves the way for a flu-COVID combo vaccine.
Vaccine effectiveness against COVID-related hospitalization was 38% in the 2 months after receipt of one dose and 34% at 2 to 4 months.
Of those who had long COVID, 61% had been hospitalized after contracting the virus.
The results suggest that waning SARS-CoV-2 immunity levels over time can lead to reinfections and a new pandemic wave, the authors say.
The clinical secondary attack rate for asymptomatic COVID-positive children was more than 10%.