Being in latin america in dec 2015. Brain grows in an abnormal ways after being born. Zika is a mosquito transmitted diseases - circulating in brazil (already in. Africa in several decades) but it effect seems transient, Incident rate occur 1 out 10000/5000 for zika before, incident grow to 1 out 100 after zika outbreak. 90% microcephaly cases happened of in the north eastern part of. Declare the state an emergency good public health emergency . First cases detected in us - 59 cases in 21 states (virius imported cases) Mosquito to people, sexual transmission tell pregnant women or women who plan to become pregnant not to have sex with men who have been to a place where zika is circulating . March 2016 - studies to strengthen links between the zika virus and serious birth defects. August 2016- zika infection may affect adults brain cells, suggesting risk may be limited to pregnant women.