Mass in St. Peterβs Square at the Vatican on Wednesday. The service was held by Cardinal Luis Antonio Tagle in Pope Leoβs absence, and included special prayers for the pontiffβs health.
In an interview, Dr. Peter Piot recalled when he first saw the spindly virus under a microscope and reflected on a five-decade career spent fighting two deadly pathogens.
Drawing blood at an H.I.V. clinic in South Africa last year. The research networksβ large footprint has enabled them to develop tools to prevent and treat H.I.V., including in marginalized or rare populations.