Experts are calling on the Ministry of Health to improve mask wearing guidelines to ensure the protection of New Zealanders in the wake of highly infectious variants of COVID-19.
They say that the current mask practice Border It is not optimal for reducing the risk of aerosol infections and is seeking public education campaigns to help New Zealanders improve their use of masks.
Summary of new rapid evidence Improved use of masks to prevent COVID-19 infection from Koi Tū: The University of Auckland Informed Futures Center integrates the latest international studies on three major types of faces increase mask— Medical, cloth, N95 mask. It provides suggestions for border workers, essential workers, and everyday New Zealanders.
Authors Chloe Wilkinson, Dr. Felicia Rowe, Dr. Joel Lindelaub, and Koi Tou’s director, Sir Peter Gluckman, told MIQ workers, people staying at MIQ, and all other border-related personnel. States that an N95 mask is a must.
Sir Peter said: “Wearing a mask is an important part of our defense. It seems wise at the border to improve guidelines while New Zealand is trying to eliminate the invasion of the virus into the community. This is a much higher vaccination rate. It’s definitely a necessary strategy until it gets high. “
The Ministry of Health guidelines on mask use for managed quarantine and quarantine facility staff were updated in November 2020 and significantly strengthened in August 2021 after the advent of the Delta variant. This update significantly expanded the use of the N95 respiratory system in the MIQ, but its use at the border was not universal.
Dr. Law said that overseas, mask obligations changed rapidly as the number of cases increased and decreased. Some countries have tightened mask requirements for delta variants.
“People most likely to be exposed to the virus need to get the best possible protection, which means that all essential border workers wear N95 masks that fit properly at work. You need to, “she says.
Aerosol expert Dr. Linderaub says the mask is as good as its fit. Therefore, it is important to make sure there are no gaps between the face and the mask when worn, especially along the nose and sides of the face. Cloth masks need to be at least three layers of fabric, and bandanas and other face covers are not enough.
Medical masks were originally designed to protect against liquid droplets and other forms of droplet infection, rather than the much smaller aerosols found in viruses that spread COVID-19.
Various laboratory tests suggest that medical masks typically filter 50-75 percent of the various test particles. If there is a gap around the face, air will leak and the effect of the mask will be greatly reduced.
The effect of the medical mask can be greatly improved. When modified to improve the seal on the face, up to 60-90 percent of the particles are filtered.
One easy way to make a medical mask more effective, Dr. Linderaub said, is to tie the sides of the ear loop near the mask and push the mask’s pleats inward. You can watch his demonstration video here: youtu.be/m1yzpmqVF34
“Most people may not realize that the mask is not worn properly. If the mask does not fit properly, much of its filtering ability will soon be lost. Make sure the mask fits tightly. It takes time to get sick and stay healthy, “he says.
The recommended guidelines for all alert levels are:
For border workers and key workers:
- It is highly recommended that all workers at the border wear N95 or similar breathing masks certified at all COVID-19 alert levels. This includes all controlled quarantine and quarantine facility staff, airport staff, and all other critical personnel.
- It is highly recommended that all individuals quarantining in a controlled quarantine should wear a certified N95 or similar breathing mask whenever they are outside their room.
- Ideally, do not use other types of masks in these high-risk situations.
- All N95 Respirator Mask users should be trained in the optimal personal fit and usage of these masks.
for the public:
- A public education campaign that emphasizes a snug-fitting medical or three-layer cloth mask. It is imperative that they fit snugly and tightly seal around the contours of the face, especially around the nose, cheeks and chin.
- Do not reuse the medical mask. Must be replaced after wearing for up to 6 hours. Instructions for changing the medical mask should be provided to improve the seal.
- The cloth mask should be made of at least three layers of cloth and shaped to fit snugly against the face. Do not use low-layer cloth masks and loose face covers such as bandanas and scarves as they do not provide adequate protection.
- Wash the cloth mask frequently (preferably daily) with soap and hot water, allow it to dry completely, and then reapply it.
- N95 and similar breathing masks should be prioritized for mandatory and border workers.
Improved use of masks to reduce COVID-19 infection. informedfutures.org/improving-mask-use/
University of Auckland
Quote: “Knot and Tuck” masks for enhanced COVID protection (September 17, 2021) from https: //medicalxpress.com/news/2021-09-tuck-masks-covid.html September 2021 Obtained on the 17th.
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