<prompt> In the heterosexual transmission from infective to non in fective paner of Human Immuno-deficiency Virus infection HIV-There is a greater risk of transmission from man to a womanThere is greater risk of transmission from woman to manRisk is equal either waysHIV infection is not transmission by heterosexual act  <response>: A European study of heterosexual couples in suggests that chances of transmission of HIV infection from male to female is twice as likely as from female to male. Reference; Park;s Textbook of preventive and social medicine, 24th edition.Pg no. 364 