A review of refugee medical screening in New South Wales.

Public health concern in relation to refugees arriving in New South Wales is due to the high prevalence of tuberculosis, syphilis and hepatitis B infection in some refugee groups. Other infectious diseases (with the exception of malaria in the Northern Territory and Queensland) do not pose a significant threat to public health owing to their low prevalence (which may result from overseas screening and treatment) and/or low infectivity in Australian conditions. Because of overseas screening by the Commonwealth Government before the departure of the refugees, it was uncommon in 1984 for previously undetected tuberculosis to be detected when refugees were screened on arrival in Sydney (found in only one in 800 refugees who underwent screening). However, of the refugees in Sydney who had positive results of serological tests for syphilis, a substantial proportion (at times in excess of 50%) had had a negative result at the overseas screening; subsequent follow-up of those with positive serological results indicated inactive disease in almost all cases. There is a need to monitor the infectious disease prevalence and the effectiveness of overseas screening of refugees by on-arrival screening; decisions about screening procedures and the selection of particular incoming refugee groups for screening should be based on sound epidemiological and clinical analysis.