The Department of Health has provided updated advice regarding recommendations on preventing sexual transmission of Zika. The main change is the period of abstinence/pregnancy deferral/safe sex for asymptomatic men, which increases from eight weeks to six months. The revised version emphasises the availability of testing for couples and people who cannot wait the recommended time periods, noting concerns about consequences of delaying pregnancy. These revised recommendations are based on the evidence that: the longest reported period between sympt...