TABLE 2.

Antimicrobial drug resistance of serovar Typhi isolates in 2002 to 2004 across eight Asian countriesa

Country% Nalidixic acid-resistant isolatesaMIC of ciprofloxacin (μg/ml)% Ciprofloxacin-resistant isolatesaMIC of gatifloxacin (μg/ml)% Chloramphenicol-resistant isolatesa% MDR Isolatesa
Range50%90%Range50%90%
China4.8 (1/21)0.008-0.250.0150.0300.012-0.1900.0230.0230 (0/21)0 (0/21)
Indonesia0 (0/17)0.002-0.030.0150.01500.012-0.0230.0160.0230 (0/17)0 (0/17)
Laos0 (0/50)0.006-0.0230.0120.01600.012-0.0470.0160.02318 (9/50)16 (8/50)
Bangladesh40 (16/40)0.006-0.380.0250.3800.012-0.190.0160.1940 (16/40)37.5 (15/40)
India47.8 (11/23)0.006-0.250.0940.2500.012-0.190.1250.1926 (6/23)26 (6/23)
Nepal51 (76/149)0.002-320.1250.54 (6/149)0.012-1.5000.0940.2519 (28/149)NAb
Pakistan38.3 (13/34)0.004-0.250.0120.2500.012-0.1900.0230.1926.5 (9/34)26.5 (9/34)
Central Vietnam (IVI)50 (23/47)0.006-0.50.0230.3800.008-0.2500.0160.1921.3 (10/47)21.3 (10/47)
Southern Vietnam (HTD)97 (196/202)0.008-0.750.380.500.006-0.2500.1250.1950 (101/202)50 (101/202)
  • a Parenthetical numbers indicate no. of resistant isolates/no. tested.

  • b NA, not available.