Coronavirus US: Cold air can cause infections in meat plants

Meat processing plants in the United States have become notorious hotspots for coronavirus, and the cold air in them can ignite the flames of the virus’s spread.

Thousands of meat processing workers have tested positive for COVID-19, and at least 20 have died.

In fact, the same cold temperatures and powerful ventilation that help kill bacteria that could otherwise contaminate meat can help preserve the coronavirus and cause viral particles to fly from worker to worker.

U.S. workers aren’t alone in these high infection rates, with similar outbreaks related to packaging plants in the UK, Canada, Ireland, Spain, and Brazil.

Even if the outside temperatures are warm in summer, the viral spread in these cold facilities can be a worrying precursor to the virus’s potential activity in winter.

Just when Texas officials thought the coronavirus crisis was under control enough to reopen the economy there, a spike in cases was seen in Moore County.

Moore is home to JBS USA, one of the largest meat processing plants in the country.

A county with fewer than 22,000 residents, there are 877 cases of coronavirus in Moore. Fourteen people have died.

About 3,000 people work at the JBS factory. As of a May 8 report, Centers for Disease Control and Prevention, 113 workers from two Texas meat processing plants had contracted coronavirus.

According to the Washington Post, more than 100 people at a Colorado JBS factory have fallen ill and four have died, nearly 900 workers at a South Dakota Smithfield factory have contracted the virus, and one has died, and at least 186 Tyson Foods employees have coronavirus and died in an Iowa Tyson Foods factory.

In all, nearly 4,000 meat manufacturers at 115 plants in 19 states in the United States had fallen ill as of the May CDC report.

There are several reasons for this, the CDC report suggests.

Employees in these facilities are often caught shoulder to shoulder during assembly line style work.

Their work is grueling and physically demanding, making the use of face masks more challenging. CDC officials saw workers wear their masks only over their mouths and often adjust them.

Their employers sometimes struggled to keep up with intensive cleaning and sanitation practices.

Communication can also be an important topic. A factory told the CDC that its employees spoke 40 different primary languages, which undoubtedly made it more difficult to properly communicate safety measures to workers.

In addition to tightly packed workplace conditions, many workers reported living in ‘overcrowded, multi-generational’ homes, sharing small spaces and transportation. So they were constantly around, making it easier for the coronavirus to spread.

And then there are the conditions of the plants themselves.

Meat packaging plants should be kept below 50F to prevent meat from spoiling or developing bacteria, which often thrive in warmer conditions.

But coronavirus actually does better at lower temperatures. Scientists are still trying to understand the exact effects of heat and humidity on the virus and its spread, but cold seems to be the climate of choice.

This spring, President Trump infamously and incorrectly declared that the summer heat and humidity could drastically slow the spread of the corona virus.

Early Petri dishes supported his theory. The virus appeared to be less able to survive and replicate in the laboratory when exposed to heat and humidity.

But to effectively kill the virus, 130F requires heat – a temperature that is unlikely to reach anywhere in the U.S.

A study by Princeton University found that the moderate benefits of warm weather would not match the rate of spread of the virus in the absence of human immunity.

While heat may not kill the virus, the cold can leave it in the air for a long time.

“Low temperatures allow the virus to remain viable outside the body for longer, increasing the survival of the virus in the air,” said Sima Asadi, a chemical engineer at the University of California, Davis. Wired.

“That really increases the risk of infection in these plants.”

A growing body of evidence, including research that Asadi is doing, suggests that coronavirus can survive in very fine mist that sprays into the air when people just talk, not just when they cough and sneeze.

In addition, meat packing plants are highly ventilated, another measure introduced to improve their sterility and safety, which can inadvertently stimulate the spread of coronavirus.

In order to prevent pollutants from collecting and contaminating meat in the installations, the air in these huge buildings must be completely replaced at least six times an hour. Most replace it much more often.

The result is somewhat of a wind tunnel, which can have one of two effects on viral spread.

On the one hand, those high air speeds could theoretically make the area around an infected person safer by diluting the aerosol concentration. In fact, the aerosols move too fast to be inhaled, “Asadi told Wired.

But on the other hand, the high air velocities can only enhance the virus’s ability, in aerosols exhaled by humans, easily bridging two meters of social distance with viral particles.

Together, these environmental factors, combined with social factors such as language barriers and tight living quarters, can create a perfect storm for viral spread in these facilities, which are considered essential businesses and remained open during the pandemic (barring those who were in the midst of the pandemic closed) of their own outbreaks).

Public health officials are already concerned that winter may come with revived coronavirus outbreaks.

The overlap of the flu season can mean people contract both respiratory viruses.

And if SARS-CoV-2 actually does better in the cold, it could mean the winter air is swarming with the virus.

Texas A&M researchers are currently trying to study the behavior of the virus in meat packaging facilities, both to create better safety measures and to predict how the virus might behave this winter.