Vaccines and medical treatments can only go so far in an unequal society. Facing the ongoing history of racial discrimination and bias in the US would help end the pandemic.
Masks definitely catch some of the virus laden aerosols and droplets - and that will reduce transmission between people and the number of cases of COVID-19.
It will cost tens of billions of dollars to find and remove all the lead service lines that deliver water to US homes and schools. A public health expert explains why he sees it as money well spent.
Vaccine hesitancy poses significant risks for those refusing to be vaccinated. The more people get vaccinated, the better the chances of living with the virus.
Treatments for uncomplicated malaria remain mostly robust. But the arsenal against severe malaria and deaths is rapidly weakening. New options are urgently required.
Burning leaded gasoline releases toxic lead into the environment, and for 100 years people around the world have been dealing with the health effects. How did a century of toxic fuel come to be?
Dean Faculty of Health Sciences and Professor of Vaccinology at University of the Witwatersrand; and Director of the SAMRC Vaccines and Infectious Diseases Analytics Research Unit, University of the Witwatersrand
Principal Medical Scientist and Head of Laboratory for Antimalarial Resistance Monitoring and Malaria Operational Research, National Institute for Communicable Diseases
Professor and Programme Director, SA MRC Centre for Health Economics and Decision Science - PRICELESS SA (Priority Cost Effective Lessons in Systems Strengthening South Africa), University of the Witwatersrand