Protection of SARS-CoV-2 natural infection against reinfection with the Omicron BA.4 or BA.5 subvariants

This study estimates the effectiveness of previous infection with SARS-CoV-2 in preventing reinfection with Omicron BA.4/BA.5 subvariants using a test-negative, case–control study design. Cases (SARS-CoV-2-positive test results) and controls (SARS-CoV-2-negative test results) were matched according to sex, 10-year age group, nationality, comorbid condition count, calendar week of testing, method…

Read the full article here

Source: medRxiv

Categories: Infectious Disease, Latest Headlines

Tweets with this article

Trevor Bedford

Although it's difficult to estimate long-term rate of R→S for SARS-CoV-2, we can extrapolate from @HebAltarawneh et al's finding of 76% effectiveness of BA.1 infection to prevent BA.4/BA.5 reinfection (https://t.co/tPcceilmmk). 9/11

Early Biological Markers of Post-Acute Sequelae of SARS-CoV-2 Infection

To understand the roles of acute phase viral dynamics and host immune responses in PASC, we enrolled 136 participants within 5 days of their first…

Ruth Ann Crystal, MD July 18, 2023

Early Biological Markers of Post-Acute Sequelae of SARS-CoV-2 Infection

To understand the roles of acute phase viral dynamics and host immune responses in PASC, we enrolled 136 participants within 5 days of their first…

Eric Topol July 17, 2023

Changes in Masking Policies in US Healthcare Facilities in the First Quarter of 2023: Do COVID-19 Cases, Hospitalizations, or Local Political Preferences Predict Loosening Restrictions?

Introduction: In the first half of 2023, many US healthcare facilities updated their policies on the required use of face masks by patients and employees.…

Vinay Prasad July 17, 2023

An analysis of studies pertaining to masks in Morbidity and Mortality Weekly Report: Characteristics and quality of all studies from 1978 to 2023

Importance: Because the MMWR has substantial influence on United States public health policy and is not externally peer-reviewed, it is critical to understand the scientific…

Tracy Høeg, MD, PhD July 14, 2023

An analysis of studies pertaining to masks in Morbidity and Mortality Weekly Report: Characteristics and quality of all studies from 1978 to 2023

Importance: Because the MMWR has substantial influence on United States public health policy and is not externally peer-reviewed, it is critical to understand the scientific…

Vinay Prasad July 13, 2023

Related Articles