29 January 2016 - Communicable Disease Control Branch
Zika virus infection outbreaks have been reported recently in the Pacific and Central and South America. The virus is also known to occur in south east Asia and Africa. Recent outbreaks have been associated with a dramatic increase in the numbers of infants with severe birth defects including microcephaly, and other poor pregnancy outcomes, particularly in Brazil, and investigations are underway to determine whether there is a causal link with Zika virus infection in pregnancy. An
increase in autoimmune and neurological diseases during an outbreak in French Polynesia is also being investigated. Zika virus is not generally transmitted from person to person other than maternalfetal transmission, though sexual transmission is considered possible.
Zika virus is an arthropod borne virus transmitted through the bite of Aedes mosquitoes, primarily A. aegypti but also by A. albopictus. Neither species occurs in South Australia though A. aegypti is present in parts of north and central Queensland.
20 January 2016 - Communicable Disease Control Branch
Pertussis (whooping cough) is increasing in South Australia. Ninety-two pertussis cases have been reported already this year, almost three times as many as for the same period last year. Pertussis outbreaks occur every 4 to 5 years, and it appears that another outbreak may be beginning.