Wear a mask also talk about science, not all masks can prevent disease
Posted on October 25, 2009
Filed Under H1N1 Prevention | Leave a Comment
Masks during an influenza pandemic in pigs can play a certain amount of prevention. But what people need to wear a mask, in what occasion to wear a mask, how to wear a mask in order to prevent disease, and many people are not very clear.
1, some places do not wear a mask: medical profession has been taken to the streets wearing masks on people’s controversial anti-infectious diseases. April 2003 the Guangzhou Center for Disease Control experts suggested that people take to the streets wearing a mask can not prevent SARS, but will also cause psychological fear of people, pay attention to washing hands is important personal protective measures. Some experts also believe that: wearing a mask does not effectively prevent human infection with swine influenza, the public’s fears will in itself pose a health hazard. However, if people feel a sense of security to wear a mask, then wear it anyway. In the suburbs, parks, sightseeing or shopping, when there is no need to wear a mask.
2, in close contact with patients who should be wearing a mask: in April 2003, SARS epidemic in Beijing city, pursued mainly due to health care workers in first-episode cases of human infection with SARS vigilance is not high, personal protective measures are not in place, contact the first case of SARS patient’s health care workers not wearing masks, goggles, latex gloves, Socks, also did not wear Geli Fu, a result, many involved in the first case of SARS treatment of patients infected health care workers. In the hospital, SARS patients and family members to accompany the bed to the hospital to visit patients with SARS were easily infected. A large number of facts have proven that human infection with swine influenza can be spread through close respiratory contact and close communication, therefore, health care workers, people infected with swine influenza and other family members of patients often come into close contact with patients who need to make proper personal protection. Hospital care workers, cleaners, ambulance drivers, elevator workers they have access to the staff of swine influenza patients also have the possibility of infection. In addition, to the hospital suffering from chronic diseases of the elderly, the best have to wear a mask.
3, not all masks can prevent disease: a mask may generally be divided into two kinds of civil and medical. There are four layers of civil, 6 layers, 8 layers and 12 layers cotton face masks, face masks containing the chemical composition of the blend, add a layer of activated carbon black masks and printed with cartoon images 1 to 3-layer fabric masks, of which only 12-layer cotton face masks can prevent the spread of pathogens, the other wearing a mask can not prevent disease.
There are 12,16,18 and 20 medical cotton layer masks, filter masks, in line with the standard N95 or FFP2 protective masks, as well as dealing with dead bodies wearing activated carbon filtration of the anti-virus masks, disposable surgical masks, one-time “snout” mask .
Fever clinics and isolation wards of human infection with swine flu, the staff must wear N95 masks or 12 or more layers of cotton masks, plus nose clip wearing surgical masks. Masks can only be used once, once wet can not be separated from the pathogen on the role of the. Wear a mask should cover the nose, not the old hand-to-face masks, nor can mask hanging around her neck repeatedly wear. Masks can be worn cotton yarn 500mg / L chlorine disinfectant for 30 minutes disinfection can also be used steam pressure steam sterilization for 20 minutes.
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