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CDC Updates How COVID-19 Spreads



The Centers for Disease Control and Prevention (CDC) has recently updated that the keyway of how Covid-19 being transmitted is through exposure to respiratory droplets carrying the infectious virus. In short, it is airborne transmission.


What is airborne transmission? According to World Health Organization (WHO), airborne transmission is defined as the spread of an infectious agent caused by the dissemination of droplet nuclei (aerosols) that remain infectious when suspended in the air over long distances and time.


Generally, when a person coughs, sneezes, talks or sing, tiny respiratory droplets will be expelled, and the particles can linger in the air. Let’s imagine an infected person who sneezes; their saliva and respiratory secretions- including a virus, can be released in the air. If there is another person in close contact (within 1 metre distance) with the infected person, the respiratory droplets could infect the other person. What does CDC claim about Covid-19 transmission? “The risk of SARS-CoV-2 infection via the fomite transmission route is low, and generally less than 1 in 10,000, which means that each contact with a contaminated surface has less than a 1 in 10,000 chance of causing an infection,” stated in the CDC article from their findings of the quantitative microbial risk assessment (QMRA) studies conducted. In other words, disinfecting surfaces has minimal impact on Covid-19 prevention as the risk of transmission via a surface is very low. In the article, another QMRA study evaluated the effectiveness of prevention measures that reduce the risk of surface transmission. It is found that hand hygiene could substantially reduce the risk of Covid-19 transmission from contaminated surfaces, while surface disinfection once- or twice-per-day had a very limited effect on reducing estimated risks.

What can you do to stay safe from airborne viruses? Surface disinfection does not prevent the spread of airborne viruses. One should consider aerial disinfection to eliminate bacteria and germs found in the air. Aerial disinfection can be achieved by introducing a spray, mist, or fog into an enclosed space to kill airborne germs.


Using an aerial disinfection machine like BioCair Dry-mist Disinfecting machine for an hour per day in an enclosed area can kill 99.999% airborne germ. When the mist lands and settles on the surfaces, it will also eliminates the surface germs.

All BioCair products are tested to be non-toxic, non-irritant, alcohol-free and child safe. BioCair dry mist also proven to be safe for inhalation and it is meant to cause no irritations or harm to human lungs when we breathe in. Furthermore, testing have been performed to validate the effectiveness of the products which can kill bacteria, viruses, fungus and spores; including enveloped virus (the same virus type as Covid-19).




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