The combined vaccine elicited higher immune response against SARS-CoV-2.
Plaque growth can lead to a higher risk of heart attack, stroke, and other life-threatening cardiovascular events for as long as 1 year.
Post-exertional malaise, or exercise intolerance, was seen in 36% of those with long COVID.
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In the northern Amazon basin where cases are spiking, ICUs in Brazil, Peru, and Colombia are filling up with COVID-19 patients.
It's striking that mental healthcare increased significantly at the same time that overall medical care fell.
The P1 variant that caused a second wave of COVID-19 infections in Manaus, Brazil, is more transmissible and from 25% to 61% of previously infected people may be susceptible to reinfection, according to a preprint, non–peer-reviewed study from researchers at the University of Sao Paulo, Imperial College London, and the University of Oxford.
Also, some lawmakers ask officials to examine delaying 2nd vaccine doses.
Two doses of the Pfizer vaccine were 85% to 90% effective against symptomatic illness in those 70 and older.
Low-resource nations have borne the brunt of shaky oxygen supply chains, even before COVID.
Also, the WHO details COVAX rollout and hot spot nations that contributed to a weekly rise in cases, the first in 6 weeks.
After vaccination with an mRNA-based COVID-19 shot, antibody levels for immunoglobulin G (IgG) were higher in the short term in healthcare workers (HCWs) who had previous COVID-19 infections than those who had never had the disease, according to a research letter published yesterday in JAMA.
Availability of the J&J vaccine will be limited for weeks.
A review of 10 studies finds the therapy doesn't improve survival or clinical status or shorten hospital stays.
