Use of Face Masks Urged for Children
August 25, 2021 With the new academic year beginning in the United States, there is debate and discussion regarding the use of face masks for school children who cannot be vaccinated yet and the necessity of these masks as an important countermeasure.
Ongoing research in our laboratory has shown that layered masks are better compared to single layer masks. As comfort is a factor in addition to filtration, next-to-skin comfort can be provided using a cotton layer, and additional layers can be used to enhance filtration. While N95 masks are the gold standard, 3-ply face masks can provide filtration of small particles with a filtration efficiency in the range of 80% to 90%, proving multilayered masks are needed.
Dr. Harvinder Gill, a vaccine researcher and Professor of Chemical Engineering at Texas Tech University, stated, “PPEs are the first line of safety for researchers working for treatments and cures against infectious diseases and for the frontline responder working during times of crisis to help the affected people. While vaccination can protect people, the virus can still infect the vaccinated folks, and, without them even knowing, they could be the carriers of virus in the community. By wearing face masks, this vicious cycle of transmission can be stopped, and the pandemic can see its end.”
Since July, there is a rise of COVID-19 cases due to the emergent Delta variant, which has genuinely heightened the need for vaccinations and other protective measures. On July 27, the United States Centers for Disease Control and Prevention recommended the use of face masks in indoor public settings, as this variant has been found to be more contagious.
Face masks have been shown to reduce the transmission. With the unavailability of vaccines for kids under the age of 12 and with schools resuming in-person teaching after a full year, parents are genuinely concerned about safety. Even with the full approval of one COVID-19 vaccine on August 23, it is unlikely that vaccines will be available for kids below the age of 12 by the end of this year. This view was expressed in a recent radio interview by Dr. Francis Collins, Director of the United States National Institutes of Health.
“In countries where vaccines are not yet available for large populations and in those regions where population density is high, other countermeasures such as face masks are needed,” said Dr. Srinivasan Narasimhan, Managing Director of the Asthagiri Herbal Research Foundation in Chennai, India. “With schools resuming in-person tutoring this fall, it is important to consider safety measures like wearing face masks and practicing hygiene.”
His organization is working on natural herbs-based antimicrobial formulations for impregnating cotton and other materials.
Face masks that have multiple layers are needed to serve as a barrier to the transmission of microbes. Commercially available masks have two to four layers using knitted and woven fabric structures. Further research is needed to determine the material type, construction details, and comfort factors of masks that will lead to greater acceptability of PPEs in the future.
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