When did he discovered? Do you mean what? He discovered Yellow Fever was transmitted by mosquitoes. And if you mean when did he discover it, then the answer you are looking for is he led a research team that discovered this in 1900.
walter h sammons was born in the year of 1917
Walter Sammons is the African American man who invented the hot comb.
J.J.Thomson has discovered the electron in 1897
It is not known where exactly in England sodium was discovered. It was discovered by Sir Humphrey Davy in 1807.
cytoplasm/protoplasm was discovered by Robert brown
Walter Reed
Dr.Walter Reed discovered that yellow fever is carried by mosquitos
The Walter Reed Army Medical Center and The Walter Reed General Hospital were named after Major Walter Reed, an army physician who discovered that Yellow Fever was transmitted by certain types of Mosquito bites rather than by direct contact. This new knowledge was considered a milestone in biomedicine which is why he became famous and had the hospital named after him.
Walter Reed
Yellow fever was the disease that Walter Reed discovered was transmitted by a mosquito. This disease was a particular problem during the construction of the Panama Canal.
Walter Reed was born on September 13, 1851.
Walter Reed was born on September 13, 1851.
The cause of Yellow Fever was discovered in Cuba in 1900by Walter Reed and a team of scientists.--Joshua Ballance, grade 7
Walter Reed Middle School was created in 1939.
Walter Reed died on November 23, 1902 at the age of 51.
Walter Reed had at least 2 brothers and 1 sister. I believe he had more, but I am not sure.
Walter Reed Tropical Medicine Course was created in 1941.