Category: Effectiveness Over Time

Increases in COVID-19 are unrelated to levels of vaccination across 68 countries and 2947 counties in the United States

Posted on | Posted on John Murphy | Leave a Comment on Increases in COVID-19 are unrelated to levels of vaccination across 68 countries and 2947 counties in the United States

Authors: S. V. Subramanian & Akhil Kumar  European Journal of Epidemiology (2021) Vaccines currently are the primary mitigation strategy to combat COVID-19 around the world. For instance, the narrative related to the ongoing surge of new cases in the United States (US) is argued to be driven by areas with low vaccination rates [1]. A similar narrative also has […]

Impact and effectiveness of mRNA BNT162b2 vaccine against SARS-CoV-2 infections and COVID-19 cases, hospitalizations, and deaths following a nationwide vaccination campaign in Israel: an observational study using national surveillance data

Posted on | Posted on John Murphy | Leave a Comment on Impact and effectiveness of mRNA BNT162b2 vaccine against SARS-CoV-2 infections and COVID-19 cases, hospitalizations, and deaths following a nationwide vaccination campaign in Israel: an observational study using national surveillance data

Eric J HaasFrederick J AnguloJohn M McLaughlinEmilia AnisShepherd R SingerFarid KhanNati BrooksMeir SmajaGabriel MircusKaijie PanJo SouthernDavid L SwerdlowLuis JodarYeheskel LevySharon Alroy-PreisAuthors: During the analysis period (Jan 24 to April 3, 2021), there were 232 268 SARS-CoV-2 infections, 7694 COVID-19 hospitalizations, 4481 severe or critical COVID-19 hospitalizations, and 1113 COVID-19 deaths in people aged 16 years […]

Effectiveness of mRNA BNT162b2 COVID-19 vaccine up to 6 months in a large integrated health system in the USA: a retrospective cohort study

Posted on | Posted on John Murphy | Leave a Comment on Effectiveness of mRNA BNT162b2 COVID-19 vaccine up to 6 months in a large integrated health system in the USA: a retrospective cohort study

Authors: Sara YTartofPhDaeJeff MSlezakMSaHeidiFischerPhDaVennisHongMPHaBradley KAckersonMDbOmesh NRanasingheMPHaTimothy BFranklandMAcOluwaseye AOgunMDaJoann MZamparoMPHdSharonGrayMSdSrinivas RValluriPhDdKaijePanMSdFrederick JAnguloPhDdLuisJodarPhDdJohn MMcLaughlinPhDd Between Dec 14, 2020, and Aug 8, 2021, of 4 920 549 individuals assessed for eligibility, we included 3 436 957 (median age 45 years [IQR 29–61]; 1 799 395 [52·4%] female and 1 637 394 [47·6%] male). For fully vaccinated individuals, effectiveness against SARS-CoV-2 infections was 73% (95% CI 72–74) […]