JACK D. WELSH, M.D.
To the editor: The article by Berman and associates, "Sporadic Anicteric Leptospirosis in South Vietnam" (Ann Intern Med 79:167-173, 1973) was particularly interesting because of previous experience in that country. Rats and swine have been identified as leptospirosis hosts in South Vietnam; 7% of 300 rats tested in Saigon were leptospira-positive (1). Slightly more than half of 157 swine from an abattoir in the Delta yielded agglutination reactions in one or more of four pools of grouped leptospira antigens (2). Twenty-three percent of 343 Vietnamese were leptospira-positive (1), and leptospirosis was a serious problem among French troops between 1950 and
WELSH JD. Leptospirosis in Vietnam. Ann Intern Med. 1973;79:756. doi: 10.7326/0003-4819-79-5-756_2
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Published: Ann Intern Med. 1973;79(5):756.
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