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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A survey of US registered dental hygienists reported that 3.1% had been diagnosed as having COVID-19 as of October 2020, according to a Journal of Dental Hygiene study published yesterday. At the time, the study says an estimated 2.3% of the general US population had been infected.
Two doses were 92% effective in preventing infection, but 1 dose was 74% effective against COVID-related hospitalization and 72% effective at preventing death.
In other good news, the CDC says case levels have dropped to summertime levels.
In other developments, global COVID-19 cases fell for the sixth week in a row.
Americans with COVID-19 antibodies displayed 10-fold increased protection against infection 90 days after testing compared with those who had no antibodies, according to a study published today in JAMA Internal Medicine.
Pending FDA approval, Johnson & Johnson is prepared to deliver 100 million doses by mid-summer.
The authors say the data support the CDC's prioritization of this group for vaccination.
Elsewhere, the UK says new cases involving SARS-CoV-2 variants are dropping sharply.
Patients critically ill with COVID-19 infections had significantly lower levels of antibodies against seasonal human coronaviruses (HCoVs) OV43 and HKU1 than those with mild to severe infections, according to a German study published yesterday in the International Journal of Infectious Diseases.
It took only 1 month for the nation's death tally to grow from 400,000 to 500,000.
