Emergence of trimethoprim-resistant Escherichia coli in healthy persons in the absence of prophylactic or therapeutic antibiotics during travel to Guadalajara, Mexico.
Scand J Infect Dis
; 33(11): 812-4, 2001.
Article
en En
| MEDLINE
| ID: mdl-11760159
ABSTRACT
Thirty-nine healthy US students without diarrheal disease and who had not received prophylactic or therapeutic antibiotics were monitored for emergence of trimethoprim-resistant gram-negative fecal flora for a 3-week period after arrival in Guadalajara, Mexico. During this time period, most students showed no change in total fecal gram-negative bacteria (p > 0.05) but showed an increasing level of trimethoprim (TMP) resistance (p < 0.01) among fecal coliforms. Escherichia coli was the TMP-resistant organism isolated in 18 of 39 (46%) healthy students. These 18 TMP-resistant E. coli were also resistant to ampicillin (44%), azithromycin (11%), chloramphenicol (39%), ciprofloxacin (11%), doxycycline (89%), erythromycin (100%), furazolidone (72%), levofloxacin (17%), trimethoprim-sulfamethoxazole (89%) and trovafloxacin (17%). In the absence of prophylactic and therapeutic antibiotics, increased acquisition of TMP-resistant gram-negative fecal flora in this developing country is probably due to poor sanitary conditions and the recurrent and heavy exposure to antimicrobial-resistant indigenous flora as a result of contaminated food and drink.
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Base de datos:
MEDLINE
Asunto principal:
Resistencia al Trimetoprim
/
Escherichia coli
/
Heces
Límite:
Adolescent
/
Adult
/
Female
/
Humans
/
Male
País/Región como asunto:
Mexico
Idioma:
En
Revista:
Scand J Infect Dis
Año:
2001
Tipo del documento:
Article
País de afiliación:
Estados Unidos