Cambodia bat researchers on mission to track origin of COVID-19

STUNG TRENG, Cambodia, (Reuters) - Researchers are collecting samples from bats in northern Cambodia in a bid to understand the coronavirus pandemic, returning to a region where a very similar virus was found in the animals a decade ago.

Two samples from horseshoe bats were collected in 2010 in Stung Treng province near Laos and kept in freezers at the Institut Pasteur du Cambodge (IPC) in Phnom Penh.

Tests done on them last year revealed a close relative to the coronavirus that has killed more than 4.6 million people worldwide.

An eight-member IPC research team has been collecting samples from bats and logging their species, sex, age and other details for a week. Similar research https://reut.rs/3EsZXVO is going on in the Philippines.

"We hope that the result from this study can help the world to have a better understanding about COVID-19," field coordinator Thavry Hoem told Reuters, as she held a net to catch bats.

Host species such as bats typically display no symptoms of pathogens, but these can be devastating if transmitted https://tmsnrt.rs/3lvfsE9 to humans or other animals.

Dr. Veasna Duong, Head of Virology at the IPC, said his institute had made four such trips in the past two years, hoping for clues about the origin and evolution of the bat-borne virus.

"We want to find out whether the virus is still there and ... to know how the virus has evolved," he told Reuters.

Deadly viruses originating from bats include Ebola and other coronaviruses such as Severe Acute Respiratory Syndrome (SARS) and Middle East Respiratory Syndrome (MERS).

But Veasna Duong said humans were responsible for the devastation caused by COVID-19, due to interference and destruction of natural habitats.

"If we try to be near wildlife, the chances of getting the virus carried by wildlife are more than normal. The chances of the virus transforming to infect humans are also more," he said.