Background There is no consensus whether tobacco smoking increases risk of tuberculosis
(TB) infection, disease, or mortality. Whether this is so has substantial implications for …

Summary Background In September, 2017, human monkeypox re-emerged in Nigeria, 39
years after the last reported case. We aimed to describe the clinical and epidemiological …

Zika Virus as a Cause of Neurologic Disorders | NEJM Skip to main content NEJM Group
Follow Us Facebook Twitter Instagram YouTube LinkedIn Prepare to become a physician, build …

Background The prevalence of cataract is higher in developing countries, and in both
developed and developing countries more females than males are blind from cataracts …

Many studies have evaluated the role of Cryptosporidium spp. in outbreaks of enteric illness,
but few studies have evaluated sporadic cryptosporidiosis in the United States. To assess …

Process mapping is a systems thinking approach used to understand, analyse and optimise
processes within complex systems. We aim to demonstrate how this methodology can be …

Introduction of non-pharmaceutical interventions to control COVID-19 in early 2020
coincided with a global decrease in active influenza circulation. However, between July and …

Monitoring the actual improvements in indoor air quality as a result of installation of
improved stoves is critical in assessment of the effectiveness of improved stove …

We conducted a randomized, triple-blinded home drinking water intervention trial to
determine if a large study could be undertaken while successfully blinding participants …

In February 2021, routine sentinel surveillance for influenza-like illness in Cambodia
detected a human avian influenza A (H9N2) virus infection. Investigations identified no …