Health risks of microplastics found in hitchhiking vomiting virus

According to the virus that causes vomiting and diarrhea, it can remain infectious in water by adhering to microplastics. research Published in the journal Environmental pollution..

MicroplasticIs defined as less than 5 mm in length and is commonly found in both freshwater and seawater. Plastic pollution.. It is estimated that 11 million metric tons of plastic waste flow into the ocean each year. Large chunks of plastic are mechanically broken down into microplastic particles.

These microplastics then penetrate our food. Tap water, Bottled water, beer, and even the air we breathe. In a German study, Deutsche Welle reported that between 2014 and 2017, 97% of children tested had plastic by-products found in their blood and urine.

Microplastics are rapidly occupied by bacteria and viruses. Bacteria and viruses have long been assumed to last longer than airborne microorganisms and travel far. The latest paper is the first formal quantification of human pathogens present in microplastics.

“We have discovered that the virus can attach to microplastics and can survive for three days in water, and in some cases even longer,” said Richard Kyriam, a senior researcher at a project at the University of Stirling in the United Kingdom. rice field. Parent.

“We didn’t know how well the virus could survive by’hitchhiking’the plastic in the environment, but it survives and remains infectious,” he said.

In the latest study, researchers used two model viruses to measure how they bind to microplastic pellets in three different types of water. The two model species were rotavirus (RV) SA11 (human gastrointestinal virus) and bacteriophage virus Phi6.

Rotavirus does not have a casing of proteins and lipids called the envelope, but bacteriophage does. These envelopes allow the virus to multiply inside the cell without destroying it.

Researchers have found that viruses that hitchhiking on microplastic pellets are more stable than viruses that exist in water and can survive for up to three days. By binding to the surface of the microplastic, the virus particles were protected from factors such as UV light that would normally kill them, especially in the presence of high concentrations of microplastic.

“The ability to recover both enveloped and non-enveloped infectious viruses from colonized microplastic pellets has the additional potential of contaminating surface water with microplastics and then exposing humans to microplastics in the environment. It highlights common public health risks, “the researchers write.

The human pathogen rotavirus is far superior to bacteriophage virus, with more retrovirus particles present on microplastics at the end of the test period. This indicates that having a protein and lipid envelope may limit the ability of the virus to interact with microplastics.

Non-enveloped viruses, including norovirus, enterovirus, adenovirus, and rhinovirus, are usually more toxic because they must destroy cells. The pathogen found in sewage, including E. coli, was previously discovered by the same research group on a small piece of plastic waste washed away on a beach in Scotland.

These two discoveries can have widespread impact on human health around the world, allowing harmful viruses and bacteria to travel across the ocean without human carriers.

“Recovery of both virus models used in this study highlights the possibility that plastic pollution may serve as a new pathway for virus spread and environmental sustainability,” the study said.

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