Prevalence, Serovars and Antimicrobial Susceptibility of S almonella spp. from Wild and Domestic Green Iguanas ( I guana iguana ) in G renada, West Indies

• Published in: Zoonoses and public health 2014-09, Vol.61 (6), p.436-441
• Main Authors: Sylvester, W. R. B., Amadi, V., Pinckney, R., Macpherson, C. N. L., McKibben, J. S., Bruhl‐Day, R., Johnson, R., Hariharan, H.
• Format: Article
• Language: English
• ISSN: 1863-1959; 1863-2378
• DOI: 10.1111/zph.12093

Cloacal swabs from 62 green iguanas ( I guana iguana ), including 47 wild and 15 domestic ones from five parishes of G renada, were sampled during a 4‐month period of January to April 2013 and examined by enrichment and selective culture for the presence of S almonella spp. Fifty‐five per cent of the animals were positive, and eight serovars of S almonella were isolated. The most common serovar was R ubislaw (58.8%), a serovar found recently in many cane toads in G renada, followed by O ranienburg (14.7%), a serovar that has been causing serious human disease outbreaks in J apan. Serovar IV :48:g,z 51 :‐ (formerly, S . Marina) highly invasive and known for serious infections in children in the U nited S tates, constituted 11.8% of the isolates, all of them being from domestic green iguanas. S almonella Newport, a serovar recently found in a blue land crab in G renada, comprised 11.8% of the isolates from the green iguanas. The remaining four less frequent serovars included S. Javiana and S. Glostrup. Antimicrobial susceptibility tests conducted by a disc diffusion method against amoxicillin–clavulanic acid, ampicillin, cefotaxime, ceftazidime, ciprofloxacin, enrofloxacin, gentamicin, nalidixic acid, streptomycin, tetracycline and trimethoprim–sulfamethoxazole showed that drug resistance is minimal, with intermediate susceptibility, mainly to streptomycin, tetracycline and cefotaxime. This is the first report of isolation and antimicrobial susceptibilities of various S almonella serovars from wild and domestic green iguanas in G renada, W est I ndies.