Family nurse practitioner Carol Ramsubhag-Carela prepares a syringe with the Mpox vaccine before inoculating a patient at a vaccinations site on, Aug. 30, 2022, in the Brooklyn borough of New York. (Photo: AP/Jeenah Moon)
Mutations in the gene that encodes a receptor called CCR5 can stop HIV (blue) entering immune cells. (Photo: Nature/NIAID/National Institutes of Health/SPL)