<prompt> All the following statements regarding transmission of HIV are true EXCEPT:Circumscission will decrease the frequency of transmissionAssociated STDs will not influence the transmissionHeterosexual contact is the most common route of transmission of HIVEven after vigorous screening, HIV transmission can occur through blood transfusion  <response>: Ans b Associated STDs will not influence the transmissionRef Park 20th edp 301The size of the risk is affected by a number of factors, including the presence of STD, the sex and age of uninfected partner, the type of sexual act, the stage of illness of the uninfected partner and the virulence of the HIV strainSo associated presence of STDs will influence the rate of transmission of HIV.A11 other options are true regarding HIV. 