Isolation of <i>Vibrio parahaemolyticus</i> and <i>Vibrio vulnificus</i> from wild aquatic birds in Japan

“…O3:K6 and other serovariants seem to have established an ecological niche in Asia (4). It appears that, in some regions, aquatic birds act as reservoirs of V. parahaemolyticus during the winter (60). However, more information should be generated in identifying the pandemic strains from such nonhuman reservoirs.…”

Section: Environmental Isolationmentioning

confidence: 99%

Global Dissemination of Vibrio parahaemolyticus Serotype O3:K6 and Its Serovariants

et al. 2007

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SUMMARY Vibrio parahaemolyticus is recognized as a cause of food-borne gastroenteritis, particularly in the Far East, where raw seafood consumption is high. An unusual increase in admissions of V. parahaemolyticus cases was observed at the Infectious Diseases Hospital in Calcutta, a city in the northeastern part of India, beginning February 1996. Analysis of the strains revealed that a unique serotype, O3:K6, not previously isolated during the surveillance in Calcutta accounted for 50 to 80% of the infections in the following months. After this report, O3:K6 isolates identical to those isolated in Calcutta were reported from food-borne outbreaks and from sporadic cases in Bangladesh, Chile, France, Japan, Korea, Laos, Mozambique, Peru, Russia, Spain, Taiwan, Thailand, and the United States. Other serotypes, such as O4:K68, O1:K25, and O1:KUT (untypeable), that had molecular characteristics identical to that of the O3:K6 serotype were subsequently documented. These serotypes appeared to have diverged from the O3:K6 serotype by alteration of the O:K antigens and were defined as “serovariants” of the O3:K6 isolate. O3:K6 and its serovariants have now spread into Asia, America, Africa, and Europe. This review traces the genesis, virulence features, molecular characteristics, serotype variants, environmental occurrence, and global spread of this unique clone of V. parahaemolyticus.

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“…With this in mind, some studies [66,71] were able to isolate these species in aquatic birds even during winter, when the frequency of isolation in water was low, which demonstrates that these bacteria can multiply in birds even when environmental conditions are not favorable and that the survival of this species in the gastrointestinal tract by just a few days is already sufficient to disperse those microorganisms throughout large distances [71]. …”

Section: Resultsmentioning

confidence: 99%

The Manx shearwater (Puffinus puffinus) as a candidate sentinel of Atlantic Ocean health

Cardoso¹,

Moura

Tavares

et al. 2014

Aquat Biosyst

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IntroductionSeabirds have been historically used to monitor environmental contamination. The aim of the present study was to test the suitability of a species belonging to the Procellariiformes group, the Manx shearwater, Puffinus puffinus, as a sentinel of environmental health, by determining contaminant levels (trace metals and organochlorine compounds) from carcass tissues and by isolating Vibrio spp. and Aeromonas spp. from live specimens. To this end, 35 Puffinus puffinus carcasses wrecked on the north-central coast of the state of Rio de Janeiro, Brazil, and two carcasses recovered in Aracruz, on the coast of the state of Espírito Santo, Brazil, were sampled, and fragments of muscle and hepatic tissues were collected for contaminant analyses. Swabs from eleven birds found alive at the north-central coast of Rio de Janeiro were collected for isolation of the aforementioned bacteria.ResultsThe average concentration in dry weight (dw) of the trace metals were: mercury 7.19 mg kg-1(liver) and 1.23 mg kg-1 (muscle); selenium 34.66 mg kg-1 (liver) and 7.98 mg kg-1 (muscle); cadmium 22.33 mg kg-1 (liver) and 1.11 mg kg-1 (muscle); and lead, 0.1 mg kg--1 (liver) and 0.16 mg kg-1 (muscle). Organochlorine compounds were detected in all specimens, and hexachlorbiphenyls, heptachlorbiphenyls and DDTs presented the highest levels. Regarding microbiological contamination, bacteria from the Vibrio genus were isolated from 91% of the analyzed specimens. Vibrio harveyi was the predominant species. Bacteria from the Aeromonas genus were isolated from 18% of the specimens. Aeromonas sobria was the only identified species.ConclusionsThe results indicate that Puffinus puffinus seems to be a competent ocean health sentinel. Therefore, the monitoring of contaminant levels and the isolation of public health interest bacteria should proceed in order to consolidate this species importance as a sentinel.

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Isolation of Vibrio parahaemolyticus and Vibrio vulnificus from wild aquatic birds in Japan

Cited by 32 publications

References 17 publications

A comprehensive survey of Aeromonas sp. and Vibrio sp. in seabirds from southeastern Brazil: outcomes for public health

A comprehensive survey of Aeromonas sp. and Vibrio sp. in seabirds from southeastern Brazil: outcomes for public health

Global Dissemination of Vibrio parahaemolyticus Serotype O3:K6 and Its Serovariants

The Manx shearwater (Puffinus puffinus) as a candidate sentinel of Atlantic Ocean health

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