Antibiotic-resistant salmonella found in local poultry, says a UP study

Test tubes filled with samples of bacteria to be tested are seen at the Health Protection Agency in north London on March 9, 2011. (File photo from REUTERS/Suzanne Plunkett)

MANILA, Philippines — Salmonella with “high levels” of resistance to antimicrobial drugs were found in chicken meat sold in wet markets across Metro Manila.

This discovery came from a study by scientists at the University of the Philippines Diliman – College of Science – Institute of Biology (UPD CS IB).

They made the statement on Friday.

Salmonella is a food-borne bacteria that, if ingested, can lead to abdominal pain, diarrhea, fever, nausea and vomiting from two to seven days.

As for the study’s samples, the UPD CS IB said, “High levels (more than 45 percent) of multidrug resistance were observed when tested against antimicrobial panels, with a total of 50 ARGs (antimicrobial resistance genes) detected, conferring resistance to 12 different drug classes.”

Antimicrobial drugs are used on food-producing animals like chickens to prevent disease and promote growth, according to the World Health Organization (WHO).

But WHO also warned that misuse and overuse of antimicrobials can make bacteria resistant to the drugs and then, the bacteria can be transmitted to humans, especially through food.

“Our study suggests a need for proper surveillance of contaminating bacteria as well as regulations on antimicrobial use at the farm level,” the UPD IB CS said.

“[I]nfections from [multidrug-resistant] salmonella, especially among vulnerable populations and from highly virulent serovars (types of salmonella), can lead to life-threatening, systemic, and untreatable manifestations,” it added.

READ: Poultry found resistant to antibiotics; study warns risks in consumption

The scientists called for an increase in awareness on antimicrobial resistance and multidrug resistance in farms, clinics and communities.

They are also asking for support in the research and development of alternatives to antimicrobial drugs.