Bird flu is caused by the influenza A virus type, the host of birds and some animals such as pigs, horses, etc., and like any other flu virus, it spreads through air, water, direct contact, body fluids and excretions. The flu virus is launched, could be the contamination of the air, quite high during epidemics and / or pandemic. Infected people carry the flu virus with them wherever they travel and spread it in the air and on objects that affect them through theirNasal secretions and bodily discharges. This makes such diseases as the human flu and bird flu contagious.
The preventive measures include combinations of different methods, such as partially effective vaccine, immunization, isolation, mass killings (in poultry birds are infected) and use of Personal Protective Equipment (PPE).
Such PPE device is a mask worn by the residents or work in polluted environments. Nose and mouth masks or "masks" include filtersto keep the virus from microscopic sizes as low as 0.3 microns. In general, the droplets of the influenza virus with a human sneezing, coughing or spitting are 0.5 microns wide and can be difficult using conventional filter (surgical) masks.
The use of procedural and surgical masks are widely used in limiting the spread of common respiratory diseases. Recently, they have to involve staff in the control of SARS. However, Center for Disease Control and Prevention (CDC)Reports that there are no scientific studies that can clearly demonstrate masks as was 100% effective in preventing the spread of the flu virus.
The masks, which are especially recommended for avian flu, are N-95, NIOSH approved filtering out those who widely from 95% of 0.3 microns of influenza viruses capable of. The WHO recommends necessarily those masks when in the vicinity (within 3 feet) of a potentially infected person. Also, the masks should be disposed of,after a single use. Another set of very strong, protective masks are powered air-purifying respirators (PAPRs). These are persons who can not wear N-95 masks used, such as people with facial hair.
There's more to use than a mask to filter out viruses. Masks can also in many ways, apart from indirect blocks flu viruses to help directly, but we have in mind a regrettable fact that no mask is a guarantee for the protection of users against viruses to bear.It's just that they can dramatically cut the likelihood of infection. There is no single way to prevent the bird flu, a vaccine is developed, generic drugs. Until then, we must rely on a combination of various measures to keep us safe.
0 ความคิดเห็น:
แสดงความคิดเห็น