Disease transmission

Acute respiratory infections and Streptococcus pneumoniae Carriage

Background. Bacterial pneumonia and otitis media often follow influenza and other upper respiratory viral infections. Streptococcus pneumoniae (SP) is one of the most frequent culprits. While animal models suggest influenza enhances SP transmission …

Social organization, cohesion, village context, and infection risk in rural Ecuador

Social networks are typically seen as conduits for the spread of disease and disease risk factors. However, social relationships also reduce the incidence of chronic disease and potentially infectious diseases. Seldom are these opposing effects …

How Infections Propagate After Point-Source Outbreaks

Background: Secondary transmission after point-source outbreaks is an integral feature of the epidemiology of gastrointestinal pathogens such as norovirus. The household is an important site of these secondary cases. It can become the source of …