Immune response may vary with choice of COVID-19 booster
Dec 16, 2021
All seven vaccines tested boosted immunity following two doses of ChAdOx1 nCoV-19; six of seven did so following two doses of BNT162b2.
Booster cuts COVID-19-related mortality in adults with chronic conditions
Jan 30, 2023
The findings “support the recent focus on older people and those with chronic conditions for future booster doses of SARS-CoV-2 vaccines beyond the first booster,” the authors write.
Prior SARS-CoV-2 infection ups protection for vaccinated
Nov 15, 2021
Prior infection was linked to a lower risk for breakthrough infection among individuals vaccinated with BNT162b2 (Pfizer-BioNTech) or mRNA-1273 (Moderna).
Omicron variant may overcome prior COVID-19 infection
Dec 03, 2021
Researchers found a jump in repeat infections with the new omicron variant that did not occur with two previous variants.
Unvaccinated have highest SARS-CoV-2 incidence, hospitalization
Feb 02, 2022
Unvaccinated persons have had higher rates of incidence and hospitalization during periods of delta and omicron predominance.
Immunocompromised may need fourth COVID-19 shot: CDC
Oct 27, 2021
Small studies have shown that fully vaccinated immunocompromised people account for ~44% of breakthrough cases leading to hospitalization.
Vaccination ups infection-acquired immunity against SARS-CoV-2
Mar 01, 2022
Two doses of the BNT162b2 (Pfizer-BioNTech) vaccine were linked to high short-term protection against infection, which wanes after six months.
Risk for breakthrough SARS-CoV-2 infection lower with mRNA-1273
Feb 02, 2022
The risk for breakthrough infection and of 60-day hospitalization was significantly lower for mRNA-1273 (Moderna) versus BNT162b2 (Pfizer-BioNTech) vaccination.
Biden outlines measures to fight omicron, pleads with Americans to get vaccinated
Dec 21, 2021
Included in the battle plan announced Tuesday are measures to distribute 500 million free rapid COVID-19 tests to the public.
BNT162b2 protects against COVID-19 hospitalization for up to six months
Oct 06, 2021
The effectiveness of full vaccination against SARS-CoV-2 infections caused by the delta variant or other variants wanes more quickly. The BNT162b2 vaccine also is known as the Pfizer-BioNTech or Comirnaty...