History of viruses, Biology

In the early days of microbiology, the disease producing submicroscopic agents were termed as 'filterable viruses' because of their ability to pass through conventional filters which retain bacteria. The existence of viruses was first observed in 1892 in the mosaic disease of the tobacco plants by Beijerinck and Ivanovski. That the foot-and- mouth disease of cattle is caused by a virus was discovered in 1898 by Loefler and Frosch. Since then a large number of viruses from plants, animals and human beings have been recognized for their involvement as etiological agents of disease.

Posted Date: 9/18/2012 8:03:48 AM | Location : United States







Related Discussions:- History of viruses, Assignment Help, Ask Question on History of viruses, Get Answer, Expert's Help, History of viruses Discussions

Write discussion on History of viruses
Your posts are moderated
Related Questions
GER M LAYER THEORY - Proposed by Pander, studied chick embryo development. Coined the term ectoderm, mesoderm & endoderm.

What is xaxim? Most pteridophytes have subterraneous stems similar to the substrate called as rhizomes. Xaxim is a kind of pteridophyte with an aerial stem in generally perpend

Explain process of Determination of vitamin B 6 Colorimetric determination of indophenol dye using 2,6-dichloroquinone chloraimide as colour reagent or diethyl-p-phenylenediam

Explain about the Sugaring - methods of food processing? Water is withdrawn from the microbial cells when they are placed in a strong sugar solution (about 68%) and thus result

Q. Incineration Treatment technologies for health-care waste? It used to be the method of choice for most hazardous health-care wastes and is still widely used. It is a high te

Would you expect the muscle fibers of the tongue to be striated or smooth? What about the muscle of the diaphragm/ Explain your answer.

Metamorphosis The phenomenon of metamorphosis is described as a process during development which involves a remarkable change in morphology and physiology of the larva, so tha

What is the type of circulatory system present in arthropods? Do these animals have heart and respiratory pigments? In arthropods the respiratory system is open (lacunar). Blo

Describe about Psycho-social Change in children? Adolescence is a period of maturation for both mind and body. Along with the physic4 growth, emotional and intellectual develop

Q. Function of Adenosine in brain? Adenosine has four different receptor subtypes (A1, A2A, A2B and A3). Adenosine A2A receptors are concentrated in striatum. Adenosine recepto