Antibiotic resistance – Colistin, mcr-4, mcr-5, pigs, poultry – China
By Canadian Poultry Magazine
Features Disease watch Health Diseases
DATE: March 16, 2018
LOCATION: China
DETAILS: A research team based in China reported that the newly identified colistin-resistance genes MCR-4 and MCR-5 occur widely in the country’s pigs and poultry, according to a study in PLoS One.
They used a polymerase chain reaction (PCR) test to directly detect the genes in anal and nasal swabs from 1,454 apparently healthy pigs in nine of China’s provinces and cloacal and oropharyngeal samples from 1,836 poultry from live-bird markets in 24 provinces.
For both of the genes, prevalence was significantly higher in swine than in poultry swabs. MCR-4 was found in 41.4 per cent of pigs and 11.5 per cent of poultry, and MCR-5 was present in 31.1 per cent of pigs and 5.6 per cent of poultry.
Poultry species that harbored the gene included geese, chickens, pigeons, and ducks. In both animal types, MCR-4 and MCR-5 prevalence was higher in the nasal and oropharyngeal swabs than in anal and cloacal swabs.
Researchers found both of the genes in swabs from 2.6 percent of poultry and 18.3 percent of pigs.
SOURCE:
http://www.promedmail.org/post/5690283
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