Antimicrobial susceptibility of some bacteria isolated from cats with respiratory tract disease

Abstract

The objective of this study aimed at isolating Streptococcus spp., Pasteurella spp. and Bordetella
spp. bacteria from cats in Ho Chi Minh City and to determine antibiotic susceptibility of those
bacteria. There were 62 nasal secretion samples of cats having the respiratory disease symptoms
were collected for this study. The studied result showed that there were 27 Streptococcus spp.
(43.6%), 2 Pasteurella spp. (3.2%) isolates were identified, and Bordetella was not found. Testing the
susceptibility of these bacteria isolates with 12 antibiotics was performed by agar diffusion method.
As a result, all of Streptococcus isolates were susceptiple with amoxicillin/clavulanate, 77.8% were
susceptiple with penicillin, 70.4% were susceptiple with ampicillin. However, 92.6% of Streptococcus
isolates were resistant to gentamicin, 77.8% were resistant to azithromycin and tetracycline. Two
Pasteurella spp. isolates were susceptible with ampicillin, amoxicillin/clavulanate, gentamicin,
enrofloxacin, doxycycline and tetracycline, but they were resistant to penicillin and cephalexin.
Based on this study results, amoxicillin/clavulanate or ampicillin are recommended to use in treating
the respiratory tract infections in cats caused by Streptococcus or Pasteurella.