SARS-CoV-2 transmission across age groups makes age-based interventions ineffective

Many countries have implemented various nonpharmaceutical interventions (NPIs) such as social distancing mandates and lockdowns in response to the coronavirus disease 19 (COVID-19) pandemic. Although these measures reduced stress on…

Scientists now close to eliminating mother-baby HIV transmission, says leading researcher

Quarraisha Abdool Karim has spent the past three decades studying HIV and AIDS. She has become one of the world’s leading epidemiologists and made major contributions to the global understanding…

SARS-CoV-2 transmission in schools limited when strict mitigation measures used

The rapid outbreak of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has led to the coronavirus disease 2019 (COVID-19) pandemic, which has massively impacted school operations worldwide. In the…

COVID-19 aerosol transmission simulation-based risk analysis for in-person learning

In a recent study published on the preprint server medRxiv*, researchers discuss their development of a simulation model to characterize the risks and uncertainties associated with infections resulting from aerosol…

Risk factors associated with in-school transmission of SARS-CoV-2

Recently, the Centers for Disease Control and Prevention (CDC) highlighted the need to reopen the schools during the fall of 2021 to benefit from in-person learning. In addition, to prevent…