Sickness presenteeism in healthcare workers during the coronavirus disease 2019 (COVID-19) pandemic: An observational cohort study.

Sickness presenteeism among healthcare workers (HCW) risks nosocomial infection, but its prevalence among HCW with COVID-19 is unknown. Contemporaneous interviews revealed a sickness presenteeism prevalence of 49.8% among 255 HCW with symptomatic COVID-19.

Vaccination Status and the Detection of SARS-CoV-2 Infection in Health Care Personnel Under Surveillance in Long-term Residential Facilities.

This cohort study examines the association of vaccination status and detection of SARS-CoV-2 infection in health care personnel at long-term residential facilities.

Incidence of SARS-CoV-2 Infection in Health Care Workers After a Single Dose of mRNA-1273 Vaccine.

This cohort study of health care workers in a metropolitan Veterans Administration network examines the association of SARS-CoV-2 infection after receiving a single dose of mRNA-1273 vaccine compared with no vaccination.

Poliomyelitis-related case-fatality ratio in India, 2002-2006.

Background: On the basis of studies from developed countries, the case-fatality ratio (CFR) of poliomyelitis generally ranges from 2%-5% among children <5 years of age to 10%-30% among adults. However, little information is available for poliomyelitis-related CFR in developing countries. We conducted a study to determine the CFR in India, 1 of the 4 remaining countries with endemic wild poliovirus (WPV) circulation, during outbreaks of WPV infection during 2002 and 2006 and during the inter-epidemic years of 2003-2005.

Ongoing measles and rubella transmission in Georgia, 2004-05: implications for the national and regional elimination efforts.

Background: In 2004-05, Georgia experienced large-scale concurrent measles and rubella outbreaks. We analysed measles and rubella epidemiology in Georgia to describe disease trends, determine the cause of the outbreaks, identify challenges to achieving disease elimination goals and propose interventions to overcome them.

Methods: We reviewed national measles and rubella surveillance and vaccination coverage data, focusing on the 2004-05 outbreaks, and conducted a measles vaccine effectiveness (VE) study using data from a 2004 school-based outbreak.