The following points highlight the two main groups of slow virus disease. The groups are: 1. Animal Infection 2. Human Infection. Slow Virus Disease: Group # 1. Animal Infection: a. Visna: It is caused by viruses which are classified under the family lendviridae (See AIDS) as retro viruses and also cause a demyelinating disease in sheep with incubadon period of [...]
In this article we will discuss about Rickettsiae:- 1. Cultivation of Rickettsiae 2. Animal Inoculation of Rickettsiae 3. Laboratory Diagnosis 4. Resistance. Cultivation of Rickettsiae: All rickettsiae cannot be grown on cell free media, except R. Quintana which will grow on blood agar medium. They can be cultivated in yolk sac of chick embryo, grow on mouse fibroblast, HeLa, Hep2 [...]
The below mentioned article provides a short note on Meningitis. Introduction: Leptomeningitis is an inflammation of the membranes surrounding the brain and spinal cord (para-arachnoid). It may be caused by viruses, bacteria, fungi and protozoa. Infection may occur either through the blood (blood borne) or by direct spread along sinuses and veins from other parts of the body. Acute pyogenic [...]