<s>[INST] How should key populations protect themselves against HIV during the COVID-19 pandemic? [/INST] 
Key populations, including people who use drugs, sex workers, gay men and other men who have sex with men, transgender people and prisoners, should continue to ensure that they have essential means to prevent HIV infection, such as sterile needles and syringes and/or opioid substitution therapy, condoms and pre-exposure prophylaxis (PrEP). Source: UNAIDS. Link: https://www.unaids.org/en/frequently-asked-questions-about-hiv-and-aids. Field: Infectious Disease. Disease: HIV </s>