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Summary. Hello, I am glad to answer for you that Hacha has been circulating for less than 3 years, and the Spanish flu can be simply divided into three waves. The first wave took place in the spring of 1918 and was basically just an ordinary epidemic; The second wave, which occurred in the autumn of 1918, was the highest mortality wave; The third wave occurred from the winter of 1919 to the spring of 1920, and the mortality rate was between the first and second waves.
Hello, I am glad to answer for you, Hutchison has been circulating for less than 3 years, and the Spanish flu can be simply divided into three waves. The first wave took place in the spring of 1918 and was basically just an ordinary epidemic; The second wave occurred in the autumn of 1918, and the burning of the eyes was the wave with the highest mortality rate; The third wave occurred from the winter of 1919 to the spring of 1920, and the mortality rate was between the first and second waves.
Influenza viruses and coronaviruses are genetically different, so it is impossible to make a one-to-one comparison with the 1918 pandemic. Professor Yang pointed out that the new coronavirus mutates much faster than the 1918 influenza virus. The management of the current pandemic has also benefited from many scientific developments that did not exist a hundred years ago, including more hygienic hospital conditions, easier access to clean water, and vaccines.
Still, we can glimpse the future by looking to the past. As the world enters the third year of the coronavirus pandemic, people wonder when and how it will end. History offers important lessons.
The 1918 flu virus finally became mild after lingering for more than two years. Ann Reid, executive director of the National Center for Science Education, said it was now "part of every seasonal flu that we have ever had." Reed was involved in the genome sequencing of the 1918 influenza virus in the '90s.
Her research found that certain genetic aspects of the 1918 influenza virus continued to emerge in new outbreaks, including the 1957 and 1968 pandemics. Therefore, it is likely that people who were immune to the 1918 influenza virus had some protection for their genetic cousins. The best we can hope for with the current pandemic is that it will become flu-like.
Speaking about the coronavirus, Yang said: "I think it will stay in this world. I don't think it's feasible or even realistic to eradicate the disease at the moment.
Hopefully, we can live more peacefully with this virus. ”
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In 1918, the U.S. military fought in World War I, the last battle. It was at this time that Britain and France were the first to be infected with the pandemic. Soon after, their rival country, Germany, also began to have a big flu.
Under such circumstances, the whole of Europe gradually began to purge the flu. The reason why this flu was so devastating was because there were so many clusters during the war. This is true both for the civilian and military purposes, so it can be very destructive.
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Not destructive (the 1918 flu pandemic led to an early end to World War I), but contagious and high case fatality rates. In 1918, the first person infected with influenza appeared in the United States, because it was a mutated influenza virus (some studies have found it to be a swine flu virus), which was different from the ordinary influenza virus that circulates every year. The global pandemic infected 600 million people and killed about 50 million, and finally reached herd immunity due to the large number of people infected, thus interrupting the spread of the virus.
Influenza viruses mutate easily, so it is necessary to get a flu vaccine every year, and the prevention effect is not very good (including the small number of people who get the flu, it cannot form herd immunity, and it cannot become an immune barrier).
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The sausage flu of 1918 affected a wide range of people, and the death rate was not low, about 5%.
At that time, science and technology and news were relatively backward, which led to the flu not being controlled in time, causing a large number of deaths.
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In the 1918 influenza pandemic, which swept the world, about 10 million to 40 million people died. This number is far higher than the total number of people who have died from AIDS over the years, but the pandemic, known as the "global plague of the century," has also brought about tremendous changes in medical research, talent training, and the entire field of natural science research in the United States. The most conservative estimate of the death toll from that flu was 21 million, when the global population was less than 1 3 today.
This figure was estimated based on research on diseases at the time, and was often quoted in newspapers or letters later, but this number is certainly inaccurate. Epidemiologists now estimate that around 40 million people have died in the pandemic worldwide, and that number could even be as high as 100 million.
European and American countries are all practical, and if the goal cannot be achieved, they still have to get in, who will do it? They're not going to break up.
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