After SARS in 2003, why did various viruses appear more and more frequently?

Information technology is developed, global exchanges are frequent, and biological habitats are destroyed.

In 2003, SARS.

Raids across the country. Later, there was bird flu.

Ebola and other viruses. Since SARS in 2003, why have various viruses appeared more and more frequently? In fact, there are many reasons, which can be summarized in three points: the development of information technology, the frequent global exchanges, and the destruction of biological habitats. <>

As we all know, in the era when information technology was not developed, the efficiency of information dissemination was not high when it was obtained from television and newspapers. The dissemination of information about people can only be transmitted by mouth, and at that time, it was expensive, and they would not talk about small things. Nowadays, with the development of science and technology, mobile phones can obtain information from all over the world, and chatting through social applications, the efficiency of information dissemination is very high.

In today's era of information overflow, even if you don't pay attention to an event, the program will recommend it to you, so you can feel that the event happens frequently. In the past, I didn't read newspapers or watch TV, and I didn't know that all kinds of strange events were happening on the earth.

The process of globalization affects the way the virus spreads. Activities such as transnational tourism, **, etc., keep people in close contact, which is what the virus likes very much. At the time of the coronavirus, countries took the same measure and quarantined. Because of isolation, the transmission route can be cut off, and there will be no large-scale outbreaks.

The last reason, and most importantly, is the indiscriminate trampling of biological habitats by humans. We know that bats carry a variety of viruses and their own immunity is not infected. Some people will think, wouldn't destroying bats reduce the virus**?

Scientists say this is wrong and will exacerbate the spread. Scientists surveyed the habitat of bats and found that the habitat was decreasing. This means that bats will come into contact with other animals more in order to find a place.

As a result, these animals become vectors for the spread of the virus. Bats are just one of them, and there are many other animals in the same situation as bats.

Human activities have caused habitat destruction and a warming climate.

The global average temperature has risen, and the millennial permafrost has thawed. Originally, the virus was sealed under the permafrost, but it was released. It may be hundreds of years old, and humans have never been in contact with it, so there is no way to deal with it, and humans are very dangerous.

Because the living environment of human beings has undergone fundamental changes from before, human beings are becoming more and more easily exposed to viruses, and human detection methods are getting higher and higher, making it easier to detect viruses, so there are more and more viruses.

Because the impact of SARS is very serious, the virus mutates through a large number of transmissions and cannot be completely eliminated. Since then, various mutations have emerged.

Because various viruses are in the stage of evolution and slowly strengthen unconsciously, they appear more and more frequently.

Later, human beings became less and less particular about eating, and wild animals hunted too much, and many viruses spread in this way.

SARS broke out on November 16, 2002 in Shunde, Guangdong.

SARS refers to infectious atypical pneumonia, which is an inflammation of the lungs caused by the SARS coronavirus, which is named severe acute respiratory syndrome by the World Health Organization.

In the summer of 2003, the number of infected people was declining and the disease was completely under control. End of SARS: On June 24, 2004, the World Health Organization (WHO) announced the lifting of the travel ban on Beijing, indicating the victory of Chinese mainland in the fight against SARS.

This is a global epidemic of infectious diseases, severe acute respiratory syndrome.

Zero three years.

SARS is zero.

The kind of non of one.

Canon. Merely.

There is no zero snow for three years.

A year of severity.

SARS in '03 was the severe acute respiratory syndrome that occurred in 2003. The cause is a new type of coronavirus called SARS coronavirus.

Severe acute respiratory syndrome (SARS) is an acute respiratory infectious disease caused by the SARS coronavirus (SARS-CoV), which is named severe acute respiratory syndrome by the World Health Organization (WHO). The disease is a respiratory infectious disease, and the main mode of transmission is close droplet transmission or contact with respiratory secretions of patients.

No. SARS occurred in 2002 and ended in 2003.

The SARS incident refers to a global infectious disease wave of severe acute respiratory syndrome that occurred in Guangdong, China, in 2002, and spread to Southeast Asia and the world, and was not gradually eliminated until mid-2003. As of August 16, 2003, a total of 5,327 clinically diagnosed cases of atypical pneumonia have been reported in Chinese mainland, 4,959 cases have been discharged, and 349 cases have died or comorbid.

The earliest cases of SARS were detected in early November 2002. In early November 2002, the earliest SARS was detected in Foshan City, Guangdong Province, China. Due to the symptoms of pneumonia, the patient was classified as atypical pneumonia at that time, and it was generally referred to as "SARS" in China**.

Subsequently, the disease spread rapidly from tourism, commerce and immigration to Hong Kong, and from Hong Kong to Vietnam, Singapore, Taiwan and Toronto, Canada.