Vaccine makers already testing their shots against omicron variant
Nov 29, 2021
So far, existing vaccines have proven effective against prior coronavirus variants, including the delta variant.
COVID-19 vaccine effectiveness changing with delta predominance
Sep 14, 2021
Vaccine protection against SARS-CoV-2 infection declined; protection remained higher against hospitalization, death.
mRNA vaccines effectively prevent SARS-CoV-2 in adults in real-world setting
Jul 01, 2021
For those with SARS-CoV-2 infection, vaccinated participants had a lower mean viral load, risk of febrile symptoms and illness duration.
Vaccination offers partial protection for postacute phase of COVID-19
May 31, 2022
Individuals with breakthrough infection have an increased risk for death and postacute sequelae compared with contemporary controls.
200 million Americans are now fully vaccinated as COVID-19 cases spike
Dec 09, 2021
White House officials noted that 12.5 million shots were given last week, the highest weekly total since May.
Antibody levels after COVID-19 vaccination inversely linked to body weight
May 23, 2022
An inverse correlation was sustained for up to six months following two doses of BNT162b2 (Pfizer–BioNTech) in a small cohort of healthy young and middle-aged adults.
Fourth mRNA COVID-19 vaccine immunogenic, safe
Mar 24, 2022
Vaccine efficacy 30% for BNT162b2(Pfizer) and 11 percent for mRNA-1273 (Moderna) against any SARS-CoV-2 infection.
Homologous, heterologous COVID-19 boosters are immunogenic
Feb 07, 2022
Antibody neutralizing titers against SARS-CoV-2 D614G pseudovirus increased by a factor of 4 to 73 for all combinations.
COVID-19 vaccines not tied to immune-mediated neurological events
Mar 21, 2022
But increased risks for Bell palsy, encephalomyelitis and Guillain-Barré syndrome were observed following SARS-CoV-2 infection.
COVID-19 certification mandates may increase vaccine uptake
Dec 22, 2021
Country-specific information, such as prior vaccination uptake and vaccine hesitancy, may influence the effect of COVID-19 certification mandates.