Meet the "Delta Strain"! How is it different from "COVID-19"?
Recently, the exposure of the "Delta" strain has surged! "Delta" virus, also called delta virus, is one of the mutated strains of the new crown. It was first discovered in India on October 5, 2020 and has become the main epidemic strain of the global epidemic.
What are the characteristics of the Delta strain?
01. The communication ability has been significantly enhanced
According to a study by the World Health Organization, the transmission rate of Delta virus has increased by nearly 100% compared with other non-VOC and older virus strains, which is doubled.
At the same time, another very important indicator that reflects its transmission ability is its transmission speed, mainly because its incubation period and generation interval have been shortened.
We know that the incubation period was about 5-6 days in the past, but now it is more than 4 days. Its passage interval used to be 4 or 5 days, but now it has become about 3 days.
02. May cause the severity of the disease to increase
We have not seen in the research and observation of the Guangdong epidemic that it can significantly increase the severity of the disease.
However, in a study in the United Kingdom, it was found that the severity of the disease in Delta virus patients had increased. Compared with the Alpha mutant, the risk of hospitalization for patients infected with the Delta mutant strain increased by 2.6 times.
Its impact on the mortality rate has not yet been definitively studied.
Has the mode of transmission changed?
Its transmission method has not changed, and it is still spread through the following main methods:
01. Respiratory droplets spread
It is the respiratory droplets that we sneez, cough, or even talk that carry the virus, which can cause infection in people who come in close contact with him. This is the most important way.
02. Spread by exposure to pollutants
Respiratory droplets and secretions contaminate the surface of the object, and the virus can survive for a period of time. Other people will be infected when they touch the surface of the contaminated object with their hands and become infected with the virus. When they touch their mouth, eyes, and nose .
03. Airborne
Or it is called aerosol transmission, especially indoors, in a small, poorly ventilated space. If an infected person coughs or sneezes, it will form very small respiratory secretion particles, which can hover in the air and other people can inhale it. Cause infection.
Are current prevention and control measures effective?
At present, our prevention and control measures are still effective.
First, the scientific community's understanding of this virus. It is still a coronavirus, and its source of infection and way of transmission are basically clear.
Second, based on China's current prevention and control practices. Because the current prevention and control measures deal with the Guangdong, Liaoning, Yunnan, etc., there are nearly 30 epidemics, and the effect is remarkable.
How should we prevent it every day?
To prevent mutated viruses, we must prepare a "three-piece anti-epidemic suit", wear masks, social distancing, and personal hygiene
In addition, our daily protection also needs to do a "seven-step hand-washing method".
The first step: inside (washing the palms)
Moisten your hands with running water, apply hand sanitizer (or soap), hold your palms together, and rub your fingers together;
The second step: outside (wash the back side finger joints)
Knead the palms of your opponents along the finger seams and exchange your hands;
The third step: Clamping (wash palm side finger joints)
Facing palms, cross your hands and rub each other along your fingers;
Step 4: Bow (wash the back of your fingers)
Bend the joints of each finger, half clenched a fist, place the back of the finger on the palm of the other hand, rotate and knead, exchange hands;
Step 5: Big (wash thumb)
Hold the thumb in one hand and rotate and knead the other hand, exchange hands;
Step 6: Stand up (wash your fingertips)
Bend the knuckles of the fingers of one hand, close the fingertips, and then place them in the palm of the other hand to rotate and rub, and exchange hands;
Step 7: Wrist (Washing the wrist)
Rub your wrists and arms, and exchange your hands.
