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N-95 Face Masks Best At Curbing Covid-19 Spread.

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: Admin : 2020-08-28

N-95 masks may be the most effective at reducing the spread of the novel coronavirus, according to a study by researchers, including those from the Indian Space Research Organisation (ISRO), which suggests that any mask is better than no mask at preventing Covid-19.

The researchers noted that airborne transmission by respiratory aerosol droplets produced during coughing and sneezing is the dominant mode of spreading for infectious diseases such as Covid-19. Padmanabha Prasanna Simha, from ISRO, and Prasanna Simha Mohan Rao, from the Sri Jayadeva Institute of Cardiovascular Sciences and Research in Karnataka, experimentally visualised the flow fields of coughs under various common mouth covering scenarios.

The, study published in the journal Physics of Fluids, found N95 masks to be the most effective at reducing the horizontal spread of a cough.The N95 masks reduced a cough’s initial velocity by up to a factor of 10, and limit its spread to between 0.1 and 0.25 meters, the researchers said.

An uncovered cough, in contrast, can travel up to three metres, but even a simple disposable mask can bring this all the way down to 0.5 metres, they said.

Simha and Rao hope their findings will put to rest the argument that regular cloth masks are ineffective, but they emphasise that masks must continue to be used in addition to social distancing.

Disclaimer: This article is sourced from hindustantimes.com without any changes in the contents thereof. Only the title has been edited by Meddco.com The facts and the opinions appearing in the article do not reflect and describe views of meddco.com

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