The first time was in 2009, when H 1N 1 swine flu broke out.
The second time was in May 201April, when polio seemed to surge again, threatening the eradication work.
The third time was August 20 14, and the Ebola epidemic in West Africa gradually got out of control.
The fourth incident is related to 20 16 Zika virus.
The fifth incident occurred on 20 19, which was another outbreak of Ebola in the Democratic Republic of Congo.
The sixth incident occurred in June 5438 +2020 10, and novel coronavirus epidemic broke out in China.
The development history of international public health emergencies;
Severe acute respiratory syndrome (SARS) in 2003 was the first global public health emergency in 2 1 century. In this incident, countries realized that the current flow of people is fast and large, and a group of people gathered today can be distributed all over the world tomorrow. Public health safety is no longer a matter of a country or region, but a problem that needs global cooperation.
In order to effectively prevent and respond to similar incidents, the World Health Assembly revised the old regulations into the International Health Regulations (2005) in 2005.
Extended data:
WHO Warning Level 6:
1 level: the influenza virus has spread among animals, but no human infection cases have occurred.
Grade II: Influenza virus spreads among animals and has caused human infection, so it is regarded as a potential threat of influenza epidemic.
Level 3: Influenza virus spreads between animals or between people and animals. This virus has caused sporadic or local cases of human infection, but there is no interpersonal transmission.
Level 4: Influenza virus spreads from person to person, resulting in persistent epidemic. At this level, the risk of influenza transmission is "significantly increased" compared with the previous level.
Level 5: The same type of influenza virus spreads among people in at least two countries in the same area (such as North America) and causes persistent epidemic. Although most countries will not be significantly affected at this level, the five-level warning means that a large-scale influenza epidemic is approaching, and the time for taking measures to deal with it is running out.
Grade 6: Interpersonal transmission of the same type of influenza virus occurs in two or more areas. This level means that the global epidemic is spreading.
Take measures:
WHO continues to provide all necessary technical and operational support. The international multidisciplinary expert group assisted in investigating the animal source of the epidemic, the degree of interpersonal transmission, case screening, vaccine research and disease treatment.
The expert group will provide the international community with the epidemic situation and its potential public health impact.
Baidu encyclopedia-PHEIC