Background: Optimal use of masks for preventing COVID-19 is unclear. Purpose: To update
an evidence synthesis on N95, surgical, and cloth mask effectiveness in community and …

Annex to Infection prevention and control during health care when coronavirus disease (COVID-19)
is suspected or confirmed: interim guidance, 1 October 2021 | Geneva; World Health …

Background: Healthcare workers (HCWs) employed personal protective equipment (PPE)
during the COVID-19 pandemic, crucial to protecting themselves from infection. To highlight …

• Do no harm: the best interest, health and well-being of the child should be prioritized.• The
application of these guidelines should not impact development or learning outcomes …

Background Millions of people have acquired and died from SARS-CoV-2 infection during
the COVID-19 pandemic. Healthcare workers (HCWs) are required to wear personal …

This is the ninth update alert for a living, rapid review on the epidemiology of and risk factors
for coronavirus infection in health care workers (HCWs)(1). Updates were done monthly …

Background The emergence and rapid spread of coronavirus disease 2019 (COVID-19), a
potentially lethal disease caused by severe acute respiratory syndrome coronavirus-2 …

This is the seventh update alert for a living rapid review (1) on the use of masks for
prevention of respiratory virus infections, including SARS-CoV-2, in health care and …

WHO recommendations on mask use by health workers, in light of the Omicron variant of
concern: WHO interim guidelines, 22 December 2021 | Geneva; World Health Organization; …

This is the sixth update alert for a living, rapid review on the use of masks for prevention of
respiratory virus infections, including SARS-CoV-2, in health care and community settings …