The occurrence of leptospirosis in Iran.

The author examined 2,448 human and 541 domestic animal sera from Iran serologically for leptospira antibodies. Human sera revealed a 3.3% positivity rate in titer levels of 1:100 and higher, namely with the serovare of the serogroups Australis 2.3%, Sejroe 0.8%, Grippotyphosa 0.2%, Icterohaemorrhagiae 0.1%, Canicola 0.1%, Autumnalis 0.4% and Javanica 0.04%; domestic animal sera revealed a 6.8% in titers of 1:800 and higher, namely with Icterohaemorrhagiae 3.8%, Grippotyphosa 1.4%, Sejroe 1.2% and Bataviae 0.4%. The positivity rate for men was 3.1% for women 3.6%. In Teheran the seropositivity was higher--3.6% as in Rasth, the capital of the Gilan province--1.9%.