So the likelihood a CSW in Tanzania, South Africa, Zimbabwe
, Mozambique, etc, etc has HIV
is very high. Further, most such persons cannot affort antiviral therapy, so they have high viral loads and likely are highly infectious.
There are plenty of exceptions to all these comments, both in industrialized and developing countries. For example, owing to intensive and highly successful education programs in Thailand, the rate of HIV in Thai CSWs is low (much different than 10-15 years ago).