"Delta" has not gone far, "Omicron" is coming menacingly.
The mutant strain this time has been identified as the highest-level "variant strain of concern" (VOC) by the World Health Organization, and they named it Omicron.
There were 2828 newly confirmed cases in South Africa as of November 26, 90% of which were caused by the newly mutated Omicron virus. Rudo Mathivha, Director of the Intensive Care Unit Research Center of a South African hospital, said: “Many young people in their 20s to 30s have developed to the mid or late stage of the COVID-19, and some need intensive care. Of these patients, approximately 65% of People were not vaccinated, and most of the others received only one shot."
The first outbreak in South Africa was a cluster of student infections, and then it quickly increased to several hundred new cases, and then to several thousand cases, so it attracted the attention of the World Health Organization.
What can we do about personal protection against the epidemic?
1. Wash hands frequently and maintain good respiratory hygiene
(1)Use soap or hand sanitizer and wash your hands with running water, and wipe your hands with disposable paper towels or clean towels.
(2) Wash hands immediately after touching respiratory secretions (such as after sneezing).
(3)Maintain good respiratory hygiene. When coughing or sneezing, cover your mouth and nose with tissues, towels, etc. Wash your hands after coughing or sneezing, and avoid touching your eyes, nose, or mouth with your hands.
What is the importance of hand washing？
Proper handwashing is one of the most effective measures to prevent diarrhea and respiratory infections. Authoritative organizations such as the Chinese Center for Disease Control and Prevention, the World Health Organization, etc. all recommend washing hands thoroughly with soap and clean water (running water).
2. Enhance physical fitness and immunity, and keep the environment clean and ventilated.
(1)Enhance physical fitness and immunity, achieve a balanced diet, moderate exercise, regular work and rest, and avoid excessive fatigue.
(2)Open windows for ventilation no less than 3 times a day, 20~30 minutes each time. When the outdoor air quality is poor, the frequency and time of ventilation should be appropriately reduced.
3. Try to minimize activities in crowded places and pay attention to symptoms.
Try to minimize activities in crowded places and avoid contact with patients with respiratory tract infections. If symptoms of respiratory infection occur, such as cough, runny nose, fever, etc., they should stay home and rest. If the fever persists or the symptoms worsen, see a doctor as soon as possible.
4. The COVID-19 can come into contact with patients through droplets or directly or indirectly. Contaminated objects may be infected when they come into contact with the eyes, nose, and mouth, so please wear masks, goggles, face shields, and other protective equipment.
Attention: Wearing a mask alone will not protect you from the COVID-19!
The most vulnerable parts of the virus are the mouth, nose, eyes, so we must focus on the isolation and protection of these parts. Most people have a sense of self-protection. They wear masks when they go out and wash their hands frequently. However, masks can only cover the mouth and nose, then what about the exposed eyes?
Medical isolation masks can isolate the eyes well.
A medical protective mask is a professional-grade mask licensed by national medical standards.
In this epidemic, droplet transmission is the most common way of transmission. Droplets can parasitize the virus and spread it directly from person to person, which also leads to a high degree of spread of the epidemic. Medical protective masks can effectively cut off droplets so that the virus will automatically die without finding its host.
2. No fogging and high-temperature resistance
The fogging of ordinary glasses in the application often affects the work，and the protective mask can avoid fogging, and is resistant to high temperatures, so it can adapt to harsh environments。
3. Double isolation
This is different from ordinary masks. Medical protective masks have the characteristics of double-layer protection, which can better isolate the virus and also play a stronger protective role.
4. Protective glasses against solid debris are mainly used to prevent mechanical damage to the eyes such as metal or sand and gravel debris.
The spectacle lenses and spectacle frames should be strong in structure and resistant to shocks. There should be venting holes around the frame. Protective lenses can be tempered glass, glue-bonded glass, or copper wire mesh protective glasses.
5. Protective glasses against chemical solutions are mainly used to protect the eyes from chemical damage caused by irritating or corrosive solutions.
Ordinary flat lenses can be used, and the frame should be covered to prevent the solution from splashing.
6. Radiation-proof protective glasses are used to protect the eyes from excessive ultraviolet rays and other radiation rays.
The lens is made of special glass that can reflect or absorb radiation but can transmit a certain amount of visible light. The lens is plated with bright chromium, nickel, mercury, or silver metal film, which can reflect radiation； The blue lens absorbs infrared rays, the yellow-green lens absorbs both ultraviolet and infrared rays, and the colorless leaded lens absorbs X-rays and gamma rays.
What is the Classification of Protective glasses?
Protective glasses are usually made of flexible plastic and rubber, and the frame is wide enough to cover the user's eyes. Protective glasses are mainly divided into three categories: anti-solid dust impact, anti-liquid splash, and anti-radiation.