Face masks — the private symbol of the covid 19 pandemic — are to be equated.
A person equipped with special electronics can detect SARS-CoV-2, the virus that causes COVID-19, and other airborne viruses within ten minutes of exposure, materials researcher Yin Fang and colleagues report on September 19. Material.
“The lightness and fatigue of the face of this mask allows users to use it anytime, anywhere,” said Fang, of Tongji University in Shanghai. “This is expected to be maintained as an early warning system to prevent major outbreaks of infectious respiratory diseases.”
Airborne viruses can be transmitted between hosts in droplets of air that they breathe in and out. People infected with the respiratory disease can expel thousands of droplets containing the virus by talking, coughing and sneezing. Sometimes even these viruses can pass without any signs of illness; People who are infected with SARS-CoV-2 can start infecting others at least two to three days before they show symptoms (SN: 3/13/20). So viruses often have a head start when they arrive and infect new people.
Dente and his colleagues set up a unique sensor that reacts to the presence of certain viral proteins in the air, and attached it to a face mask. The team then sprinkled droplets with proteins produced by viruses that cause covid-19, bird flu or swine flu into a room with a mask.
The sensor could detect as little as a fraction of a microliter of these proteins—cough contains 10 to 80 times as much. Once the pathogen is detected, the combo sensor sends a signal to inform the researchers of the presence of the virus. Researchers have finally come up with the idea of sending such signals to a phone or other device. By combining this technology with more conventional testing, the team says, healthcare providers and public health officials will be able to better predict future pandemics.
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