Anti Essays offers essay examples to help students with their essay writing.

Sign Up

Cryptococcosis Essay

Open Document

Below is an essay on "Cryptococcosis" from Anti Essays, your source for research papers, essays, and term paper examples.


                                                    Prerared by: Tarig Mohamed Ageeb

• A Capsulated yeast – A true yeast..
• A sporadic disease in the past.
• Most common infection in AIDS patients.

• A true yeast
• Round   4 – 10 microns
• Surrounded by Mucopolysaccharide capsule.
• Thick in vivo
• Negative staining with India Ink and Nigrosin
• 60% of the infected prove positive   by India Ink preparation on examination of CSF
• KoH preparations in Sputum and other tissues,
• PAS and Mucicaramine staining helps confirmation.                                  

• Cryptococcus neoformans
• Distribution
• World wide distribution.

• In 1971   two cases of cryptococcal pneumonia in horses are described. Histoplasma farciminosum was isolated from both cases.
• The diagnosis was based on histopathological changes in the lungs and culture of the fungus.

• Cryptococcus neoformans
• A true yeast
• 4 serotypes   - A,B,C,D
• A and D - C.neofromans   var neoformans
• B and C - C.neoformans var gatti.
• Many infections are caused by
                C.neofromans var neoformans.                                                        
Found in wild/Domesticated birds.
Pigeons carry C.neofromans,
Birds do not get infected.
Commercialy available AB tests

A – 80% clinical cases
B – tropical, subtropical – S. California, Hawaii, Brazil, Australia, SE Asia
C – rare
D – Europe – Denmark, Germany, Italy, France, Switzerland

• Ecology:
• C.neoformans var neoformans: pigeons- parrots- canaries.
• C.neoformans var gatii:oaks-eukalyptus- maples-firs.

• Inhalation   “Intensive bird exposure area”
• Needlestick injury
• Organ transplant

• Pathogenesis
• Enters through lungs   - inhalation of Basidiospores of C neoformans.
• Enters...

Show More


MLA Citation

"Cryptococcosis". Anti Essays. 13 Dec. 2018


APA Citation

Cryptococcosis. Anti Essays. Retrieved December 13, 2018, from the World Wide Web: http://snehaedu.com/free-essays/Cryptococcosis-358291.html