Bacillary Dysentery in Taiwan Area in 1995 and 1996

TM Pan

1997 Vol.13 NO.9

Correspondence Author：

Abstract：

In the Taiwan Area, 644 cases of bacillary dysentery were reported in 1995; of them, 562 were laboratory confirmed. Of the confirmed cases, 278 (49.5%) were male and 284 (50.5%) female. Most cases (457, 81.2% of all cases) were under 14 years of age: 265 cases in the 5-9 age group; and 125 in the 10-14 age group. Many cases occurred in December (224, 39.8%) and November (183, 32.6%). Cases were reported from 15 counties and cities, in particular from Taoyuan County (407, 71.4%), Ilan County (54), Hualien County (30), Taipei County (25) and Taitung County (15). Most cases (81.5%) were of type D (Shigella sonnel), type B (S. flexneri, 18.0%), and fewer of type C (S. boydii, 0.5%) infections. No type A (S. dysenteriae) infection was reported. Six outbreaks involving 457 cases (81.2% of total) occurred during the year (an outbreak being an epidemiological clustering of five or more cases). There were 8 imported cases during the year: 3 males and 5 females of ages ranging from 22 to 73 years.