The term “herd immunity” is widely used but carries a variety of meanings. Some authors use
it to describe the proportion immune among individuals in a population. Others use it with …

While adult clinical trials of coronavirus disease 2019 (COVID-19) vaccines have moved
quickly into phase 3 clinical trials, clinical trials have not started in children in the United …

Heterogeneities in contact networks have a major effect in determining whether a pathogen
can become epidemic or persist at endemic levels. Epidemic models that determine which …

When a novel influenza A virus with pandemic potential emerges, nonpharmaceutical
interventions (NPIs) often are the most readily available interventions to help slow …

ABSTRACT New York City's multipronged subway system was a major disseminator–if not
the principal transmission vehicle–of coronavirus infection during the initial takeoff of the …

In this study, the aim is to examine how special education provided for students within
inclusive education has continued at home during the pandemic. This study has employed …

Background Influenza vaccination is recommended especially for persons at risk of
complications. In 2003, the World Health Assembly urged Member States (MS) to increase …

The British Thoracic Society first published management guidelines for community acquired
pneumonia in children in 2002 and covered available evidence to early 2000. These …

Context Influenza and respiratory syncytial virus (RSV) cause substantial morbidity and
mortality. Statistical methods used to estimate deaths in the United States attributable to …

Development of safe and effective COVID-19 vaccines is a global priority and the best hope
for ending the COVID-19 pandemic. Remarkably, in less than 1 year, vaccines have been …