Search results
Results from the WOW.Com Content Network
It was the first virus to be discovered, and the first to be crystallised and its structure shown in detail. The first X-ray diffraction pictures of the crystallised virus were obtained by Bernal and Fankuchen in 1941. On the basis of her pictures, Rosalind Franklin discovered the full structure of the virus in 1955. [35]
Plague doctor wearing a plague doctor costume A radiographer wearing an early hazmat suit in 1918 during World War I.. An early primitive form of the hazmat suit arose during bubonic plague epidemics, when European plague doctors of the 16th and 17th centuries wore distinctive costumes consisting of bird-like beak masks and large overcoats while treating victims of the bubonic plague. [1]
The costume is also associated with a commedia dell'arte character called Il Medico della Peste ('The Plague Doctor'), who wears a distinctive plague doctor's mask. [37] The Venetian mask was normally white, consisting of a hollow beak and round eye-holes covered with clear glass, and is one of the distinctive masks worn during the Carnival of ...
April 26 – The National Park, later renamed the Royal National Park, is declared in New South Wales, Australia, the world's second oldest purposed national park (after Yellowstone in the United States), and the first to use the term "national park". Jean Henri Fabre publishes the first of his Souvenirs entomologiques.
This is a timeline of influenza, briefly describing major events such as outbreaks, epidemics, pandemics, discoveries and developments of vaccines.In addition to specific year/period-related events, there is the seasonal flu that kills between 250,000 and 500,000 people every year and has claimed between 340 million and 1 billion human lives throughout history.
The history of coronaviruses is an account of the discovery of the diseases caused by coronaviruses and the diseases they cause. It starts with the first report of a new type of upper-respiratory tract disease among chickens in the U.S. state of North Dakota, in 1931.
In the 1960s, the first virus that could cause hepatitis was discovered. This was hepatitis B virus, which was named after the disease it causes. [220] Hepatitis A virus was discovered in 1974. [221] The discovery of hepatitis B virus and the invention of tests to detect it have radically changed many medical, and some cosmetic procedures.
It was the first plague epidemic in the continental United States. [1] The epidemic was recognized by medical authorities in March 1900, but its existence was denied for more than two years by California's Republican governor Henry Gage. His denial was based on business reasons, to protect the reputations of San Francisco and California and to ...