Cat scratch disease, Biology

Cat scratch disease


It is caused by Bortenella henselae, a gram-negative, non-motile bacterium. The organism is found in all parts of the world. The cat is an important reservoir host. Infectious agent is found in saliva of infected cats and may be transmitted to man through abrasion, scratch, lick or bite. It occurs more often in the winter. This disease may be more common in children because they play with cats and bitten or scratched  more frequently. The infection usually remains asymptomatic in cats and they may carry the organisms for months, once get infected. The disease is not contagious from person to person.


A blister or a small bump develops several days after the scratch or bite, which is called inoculation lesion that is most commonly found on the arms and hands, head, or scalp. Subsequently, one or more lymph nodes close to the area of the inoculation lesion swell and become tender. Other symptoms include rash on the skin, fever, sore throat, fatigue, loss of appetite, headache and anorexia. There may be an eye infection known as parinaud oculoglandular syndrome with symptoms including a small sore on the conjunctiva, redness of the eye, and swollen lymph nodes in front of the ear. The diagnosis is made on the basis of case history, isolation of organisms, demonstration of antibodies by ELISA and delayed type hypersensitivity by Hanger – Rose intradermal test. Public awareness and avoidance of contact with infected cats, through washing and care of any scratch from cat may help to reduce the risk of disease.

Posted Date: 9/20/2012 2:59:19 AM | Location : United States







Related Discussions:- Cat scratch disease, Assignment Help, Ask Question on Cat scratch disease, Get Answer, Expert's Help, Cat scratch disease Discussions

Write discussion on Cat scratch disease
Your posts are moderated
Related Questions
For many of the mammalian Hox genes, it has been possible to determine that some of them are more similar to one of the insect HOM-C genes than to the others. Describe an experimen


Which of the following processes assist in the maintenance of high levels of dissolved solutes in the interstitial spaces of the kidney medulla? A. Net flux of sodium ions from

HUMA N HEART (MAMMALIAN HEART) - Position - Situated in thoracic cavity in pericardial cavity close to its front wall. Its broad base faces upward and backward. Its narrow a

What are the four initial stages of the embryonic development? The four initial parts of the embryonic development are the morula stage, the blastula stage, the gastrula stage

Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4

Define salient modifiable factors which affect birth weight? The following are the salient modifiable factors which affect birth weight and gestation adversely: Iron deficiency

What is Septa Septa are thin bony plates, which divide the inferior portion of the antrum into sections and may even create separate compartments. A buttress or web formation m

Nutrition Monitoring and Evaluation Monitoring and evaluation is an essential step in the nutritional care process and  is very important too. Monitoring specifically refers to

Define Excretion of Iron in Human Body? Our body has a limited capacity to excrete iron once it has been absorbed. Daily losses in adult man are between 0.9 to 1.05 mg. About 0