The 1918 Spanish Influenza Pandemic

Influenza is defined as an acute common epidemic occurring in many forms and is caused by many rapidly mutating strains characterized by respiratory symptoms and systemic debilitation. The Spanish flu is not just a regular pandemic, it is a pandemic. Infectious diseases affect many people at the same time in areas where illness does not usually occur. Pandemic is domestic, international, or worldwide epidemic. The death rate of healthy adults aged 15 to 34 is abnormally high, and the average life expectancy has been shortened by more than 10 years.

The 1918 influenza pandemic epidemic (January 1918 - December 1920; commonly known as the Spanish flu) is a very lethal influenza epidemic, and two epidemic diseases involving the H1N1 influenza virus It was the first one. 500 million people are infected worldwide, including distant islands of the Pacific and the Arctic Circle, killing between 500 million to 100 million people (3% to 5% of the world's population), becoming the most fatal natural disaster in the world It is. It is one. Human history infectious diseases had limited life expectancy at the beginning of the 20th century. However, in the first year of the pandemic, the average life expectancy of the US has decreased by about 12 years. Most influenza outbreaks excessively kill the young, elderly, or debilitated patients, but in contrast, the 1918 world epidemic mainly killed healthy young people.

In 1918, the influenza virus spread all over the world, causing a global epidemic. This epidemic is called 1918 or the Spanish flu. This is caused by an influenza A (H1N1) virus that scientists believe are mutating from influenza virus previously infected only to birds. Its evolution and change are sufficient to infect humans and spread quickly among people. Since this type of influenza virus has never been infected, it will soon infect many people.

When people wrote about the epidemic of the Spanish flu from 1918 to 1919, they usually start with a large number of people infected with an amazing global death toll, epidemic virus, and the medical field to help infection I could not do it. While these factors are notable features of catastrophic events, American and European researchers and healthcare workers confidently designed the vaccine and vaccinated hundreds of thousands of people. This is the greatest medical experiment. What are the vaccines they proposed? Did they do something to protect immunization and to prevent the spread of diseases?