There were 3 influenza pandemics in the 20th century, and there has been 1 so far in the
21st century. Local, national, and international health authorities regularly update their plans …

Mass gathering events are associated with major public health challenges. The 2014 Lancet
Series on the new discipline of mass gatherings medicine was launched at the World Health …

New influenza A viruses emerge in humans from time to time, causing global pandemics.
The most recent influenza pandemic began in 2009 with the influenza A (H1N1) pdm09 …

In recent decades, respiratory infections, including SARS, HINI and the currently spreading
COVID-19, caused by various viruses such as influenza and coronavirus have seriously …

Background This article responds to one by Graham Martin and colleagues, who offered a
critique of my previous publications on face coverings for the lay public in the Covid‐19 …

Background: Evidence is needed on the effectiveness of wearing face masks in the
community to prevent SARS-CoV-2 transmission. Methods: Systematic review and meta …

The current pandemic of COVID-19 has lead to conflicting opinions on whether wearing
facemasks outside of health care facilities protects against the infection. To better …

Background Evidence for face-mask wearing in the community to protect against respiratory
disease is unclear. Aim To assess effectiveness of wearing face masks in the community to …

Background Hajj pilgrimage faces numerous challenges including a high prevalence of
respiratory tract infection as well as its prevention strategies. The aim of this study was to …

Objectives The risk of acquisition and transmission of respiratory infections is high among
attendees of mass gatherings (MGs). Currently used interventions have limitations yet the …