The fourth nationwide cold wave is coming. What protections should we take?

When the nationwide recovery is at its peak, a powerful cold air has quietly arrived in the west of Xinjiang. It can be seen from the upper-altitude weather map that there is a deep red line across Central Asia, which is the upper-altitude trough corresponding to the cold air. Affected by the small teams it dispatched, Xinjiang has begun to cool down.

Next, this cold air will sweep across the country in five days, bringing the largest temperature drop this year: from Heilongjiang to Hainan, from Tibet to Shanghai. The Central Meteorological Observatory has already judged it as a "cold wave" and issued important weather warnings. This is a treatment that the previous boss-level cold wave did not have.

This also means that since December 2020, our country will encounter four nationwide cold waves within 45 days. Its high frequency and cold intensity are rare in the new century. There are so many cold waves. On the one hand, they are related to La Niña, which we have said many times before. On the other hand, they may also be related to climate extremes in the context of global warming, which needs further research.

Compared with the previous cold wave, the fourth cold wave itself is not strong. However, because the previous great recovery was too strong, the temperature dropped violently, which is equivalent to "steaming first and then freezing" , which is more likely to induce colds than the previous cold wave.

1. Cold wave defense guide:

1. Personnel should pay attention to adding clothes to keep warm; be prepared for strong wind and cooling weather in production;

2 , doors, windows, hoardings, scaffoldings, temporary structures and other structures that are easily blown by strong winds are fastened, and outdoor items that are easily affected by strong winds are properly placed;

3. Take shelter in a wind-proof place and notify Outdoor workers should pay attention to safety;

4. Pay attention to the latest information on wind and cooling reported by the relevant media so that further measures can be taken;

5. Transportation, public security and other departments should do a good job on roads in accordance with their responsibilities Ice preparations.

2. At the same time, the weather is getting colder, and epidemic prevention and control must not be careless

①Food

When entering the supermarket to buy food, you must wear a mask correctly and maintain social distance. .

Wash your hands promptly with soap or hand sanitizer after shopping, and do not touch your mouth, nose, eyes, etc. before washing your hands.

When purchasing frozen and chilled food, you can use disposable plastic bags to cover your hands. When purchasing packaged frozen/chilled food, pay attention to the production date, shelf life, storage conditions, etc. on the food label. , guaranteed to be consumed within the shelf life.

Containers (basins), knives, chopping boards and other utensils used for handling frozen and chilled food should be placed separately and cleaned and disinfected in time.

Put frozen food in the freezer of the refrigerator. Do not store it for too long. Store it in layers with cooked food.

Cook food until it is cooked thoroughly. The principle is to keep the pot open for 10 to 15 minutes.

Try to avoid eating raw or semi-raw seafood, or eating seafood directly after soaking in wine, vinegar or salting.

Once symptoms of fever or diarrhea occur after eating, you should go to the fever clinic for medical treatment in time, and proactively inform you of the eating time, food type, source of ingredients and other information.

②Going out

When going out, you should carry a medical surgical mask with you;

Go to shopping malls, restaurants, cinemas, conference rooms, workshops and other crowded places. Wear a mask correctly when going to the hospital, taking van elevators and public transportation such as subways and buses;

It is recommended that the elderly and infirm or patients with chronic diseases wear masks when going out.

③ Enhance the awareness of epidemic prevention and control

Enhance the awareness of self-protection and health and civilization, and develop the habit of washing hands frequently, wearing masks, paying attention to hand hygiene, one-meter noodles, opening windows for ventilation, cleaning and disinfection, Share meals, avoid going to crowded places when you are sick, refrain from spitting, cover your mouth and nose with tissues when coughing or sneezing, and other healthy lifestyle behaviors.

Once respiratory symptoms such as fever and cough occur, seek medical treatment at a nearby medical institution in a timely manner, avoid going out as much as possible, and avoid going to work or school while sick.