BEIJING: The WHO says the risk of catching COVID-19 from frozen food is low, but China has repeatedly sounded alarms after detecting the virus on packaging of products ranging from German pork knuckles to Ecuadorian shrimp, triggering disruptive import bans.
China, which has used drastic measures to control the spread of the novel coronavirus, this week tightened restrictions requiring “full coverage” testing and disinfection of imported foods, following a smattering of positive samples detected on beef, pork and seafood.
The country has suspended imports of 99 suppliers from 20 countries, the National Health Commission said on Thursday.
Beijing argues that such measures are needed prevent the import of the virus, which has been largely contained domestically. A seafood market in the central city of Wuhan is widely believed to be the origin of the pandemic that emerged late last year and has now killed more than 1.25 million people.
The clampdown has caused upheaval in parts of China’s cold chain logistics network and sparked grumbling among diplomats in Beijing that the effort is politically driven, with critics saying the measures are unnecessary.
Last week, cold chain facilities in the northern city of Tianjin were shuttered when a 38-year-old frozen food worker who tested positive for the virus was linked to a shipment of frozen German pork knuckles.
“We can’t import any seafood as our warehouses have not finished rectification work yet,” said an importer of seafood and fruit in Henan. “It started in October and it has been over a month now and I don’t expect it would be finished by the end of the year.”
While scientists say the chances of infection from frozen food are low, Chinese authorities say two dock workers in Qingdao caught the virus last month from the packaging of frozen cod — an assertion that some experts have questioned.
FASTFACT
China has suspended imports of 99 suppliers from 20 countries, the National Health Commission said on Thursday.
Outside China, frozen foods are rarely implicated in virus tracing efforts. In August, a New Zealand cold storage worker tested positive, but frozen food was later ruled out as the source by health authorities.
Scientists have said that the tests on cold-chain foods and packaging also detect dead fragments of the virus, meaning that positive results do not indicate the disease is viable and can infect humans.
“People should not fear food, food packaging or delivery of food,” Mike Ryan, of the WHO’s emergencies programme, said in August. “There is no evidence the food chain is participating in transmission of this virus.”
That advice hasn’t deterred authorities in China, where food processing hubs and markets have been a recurrent vector for reported outbreaks.
China’s tightened cold chain guidelines call for “complete elimination” and “strict refusal of entry” of any products suspected of contact with the virus.
The rules require routine disinfection, including of inner and outer packaging, and blanket testing of imported goods. Exporters whose products test positive face a week-long ban.
“If it’s contaminated they return the whole of the food packaging. That’s their right, but I don’t think that’s very necessary. A decontamination process is already sufficient”, said Jin Dong-Yan, a virology professor at the University of Hong Kong.
Import hubs such as Beijing and Guangzhou have urged a halt to imports from countries that are severely affected by the outbreak.
A diplomat in Beijing who did not want to be identified said they believed China’s campaign is political: “In China authorities have managed to bring it under control but foreign health authorities haven’t, and it shows the problems in governance abroad.”
Positive tests from seafood and meat products have sparked public fear about imported food.
“The pandemic is raging overseas, so it’s better for authorities to be strict with these rules,” said the Henan importer.
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