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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]
In 1933, Shope had discovered that a skin tumor in cottontail rabbits was due to a filterable virus, [23] later known as Shope papilloma virus, [24] and showed in 1935 that the virus was transmissible in healthy rabbits. [25] Shope realized the similarity as a cancer agent with Rous's virus and requested Rous for further investigation.
In 2005, human T lymphotropic viruses 3 and 4 were discovered. [124] In 2008 the WHO Global Polio Eradication Initiative was re-launched with a plan to eradicate poliomyelitis by 2015. [125] In 2010, the largest virus, Megavirus chilensis was discovered to infect amoebae. [126] These giant viruses have renewed interest in the role viruses play ...
Finlay's work, carried out during the 1870s, finally came to prominence in 1900. He was the first to theorize, in 1881, that a mosquito was a carrier, now known as a disease vector, of the organism causing yellow fever: a mosquito that bites a victim of the disease could subsequently bite and thereby infect a healthy person. [4]
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 virus was named Transmissible gastro-enteritis virus of swine in the ICNV first report in 1971, and changed to Porcine transmissible gastroenteritis virus (PTGV) in the second report in 1976. [134] In 1963, Jean Holzworth at the Angell Memorial Animal Hospital in Boston described a new intestinal disease of cats. [135]
A disease which can kill cats, both domestic and wild, has been discovered for the first time in the US. A variant of the rustrela virus-- related to the wider-known rubella virus which causes a ...
Martinus Beijerinck coined the term of "virus" to indicate a non-bacterial nature of the tobacco mosaic disease. In 1935, the tobacco mosaic virus was the first virus to be crystallized. Despite the erroneous conclusion, Mayer's pioneer work on the tobacco mosaic disease served as an important step in the discovery of viruses and led to the ...