COVID-19 caseload stress associated with increased mortality across U.S. hospitals
1. In this retrospective cohort study, increased surge index during the Delta wave was associated with worse survival across various ...
Tag: Delta variant
Triple mRNA vaccination and previous COVID-19 exposure provide protection against the omicron variant
1. In this retrospective cohort study among prison residents and staff, mRNA vaccination and previous exposure provided more protection against ...
Rapid antigen tests detect delta and omicron variants of SARS-COV-2 with similar efficacy
1. Rapid antigen tests had similar sensitivity in detecting coronavirus disease 2019 (COVID-19) omicron and delta variants. 2. Rapid antigen ...
Maternal vaccination linked to lower coronavirus disease-related hospitalizations in infants
1. Vaccination during pregnancy with two doses of mRNA vaccine was associated with reduced risk of hospitalization, intensive care unit ...
Vaccination boosted immunity acquired from previous SARS-CoV-2 infection
1. Two doses of the Pfizer-BioNTech BNT162b2 vaccine were linked to high immediate protection again severe acute respiratory syndrome coronary ...
Covid-19 vaccines and boosters are transiently effective against the Omicron
1. Two doses of BNT162b2 (Pfizer-BioNTech) and mRNA-1273 (Moderna) vaccine provided good protection against the Omicron (B.1.1.529) variant but rapidly ...
More severe symptoms and hospitalizations seen during period of COVID-19 delta variant dominance compared to omicron
1. Loss of sense of smell was more common during a period of delta dominance, while sore throat was more ...
Widespread population immunity of Covid-19 observed in South Africa before Omicron wave
1. Widespread underlying SARS-CoV-2 seropositivity was observed in Gauteng province, South Africa, before the omicron wave. 2. Epidemiologic data demonstrated ...
Fewer hospital admissions and death were seen with SARS-CoV-2 Delta (B.1.617.2) compared to Omicron (B.1.1.529) variant infections
1. The risk of hospitalization and death was lower among cases infected with Omicron variant compared to Delta. 2. In ...
#VisualAbstract: COVID-19 vaccines provided durable protection from COVID-19, but their effectiveness waned over time in North Carolina
1. Three Covid-19 vaccines from Pfizer, Moderna, and Johnson & Johnson provided durable protection against hospitalization and death. 2. However, ...