Question

Which was the first country to find the vaccine of spanish flu?​

Answer 1

Answer:

With no cure for the flu, many doctors prescribed medication that they felt would alleviate symptoms… including aspirin, which had been trademarked by Bayer in 1899—a patent that expired in 1917, meaning new companies were able to produce the drug during the Spanish Flu epidemic.

Answer 2

Answer:

When people write about the Spanish Influenza pandemic of 1918-19, they usually start with the staggering global death toll, the huge number of people who were infected with the pandemic virus, and the inability of the medical field to do anything to help the infected. And while those factors were hallmarks of the devastating episode, researchers and health workers in the United States and Europe were confidently devising vaccines and immunizing hundreds of thousands of people in what amounted to a medical experiment on the grandest scale. What were the vaccines they came up with? Did they do anything to protect the immunized and halt the spread of the disease?

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First, the numbers. In 1918 the US population was 103.2 million. During the three waves of the Spanish Influenza pandemic between spring 1918 and spring 1919, about 200 of every 1000 people contracted influenza (about 20.6 million). Between 0.8% (164,800) and 3.1% (638,000) of those infected died from influenza or pneumonia secondary to it. 

A few vaccines to prevent other diseases were available at the time -- smallpox vaccine had, of course, been used for more than 100 years; Louis Pasteur had developed rabies vaccine for post-exposure prophylaxis after an encounter with a rabid animal; typhoid fever vaccines had been developed. Diphtheria antitoxin -- a medication made from the blood of previously infected animals -- had been used for treatment since the late 1800s; an early form of a diphtheria vaccine had been used; and experimental cholera vaccines had been developed. Almroth Wright had tested a whole-cell pneumococcal vaccine in South African gold miners in 1911. Manufacturers had developed and sold various mixed heat-killed bacterial stock vaccines of dubious usefulness.