Cat scratch disease, Biology

Assignment Help:

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.


Related Discussions:- Cat scratch disease

Deficiency diseases-selenium and vitamin e deficiency, Selenium and vitamin...

Selenium and vitamin E deficiency Selenium is an essential micro-mineral required for various physiological functions and for immunity against a variety of diseases. It is an i

Hypomagnesemia, H y p o ma g n e s e m i a It is also known...

H y p o ma g n e s e m i a It is also known as grass staggers or lactation or grass tetany and results in clonic and tonic muscular spasms and convulsions. E

Explain about round worms, Which one of the following statements about cert...

Which one of the following statements about certain given animals is correct? 1. Round worms (Aschelminthes) are pseudocoelomates 2. Molluscs are acoelomates 3. Insects ar

Phylum protozoa, What are some examples of organisms belonging to this phyl...

What are some examples of organisms belonging to this phylum? Please name them.

Mention chemical agents available for sterilization, Q. Mention chemical ag...

Q. Mention chemical agents available for sterilization? Various chemical agents available for sterilization are: Alcohols: ethyl alcohol, isopropyl alcohol, trichlorobuta

Define reaction for nelson-somogyi method, Define Reaction for Nelson-Somog...

Define Reaction for Nelson-Somogyi Method? The reagent used for enolization contains alkaline solution of cupric sulfate and Rochelle salt. Rochelle salt in the reagent prevent

What are gametes, Q. What are gametes? Gametes are cells specialized in...

Q. What are gametes? Gametes are cells specialized in sexual reproduction and they contain half of the maximum number of chromosomes of the species and unite it with another ga

Environment , Environment All organisms are intimately dependent on the ...

Environment All organisms are intimately dependent on the environment from which they derive their sustenance. Organisms from virus to man are obligatorily dependent on the envi

To study if bacteria grow better where it is dark or light, To study if bac...

To study if bacteria grow better where it is dark or light Inoculate two sterile dishes as before. Label one 'dark' and the other 'light'. Place the 1st dish in a darkwarm plac

Translation in eukaryotes, Transcription in eukaryotes, a much more complex...

Transcription in eukaryotes, a much more complex procedure than in prokaryotes. In the eukaryotes, translation and transcription take place in several cellular compartments that ar

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd