Related Experiment Video
Updated: Jun 5, 2026

08:45
Whole Genome Sequencing of Candida glabrata for Detection of Markers of Antifungal Drug Resistance
Published on: December 28, 2017
Cryptococcosis: update and emergence of Cryptococcus gattii
Sally J Lester1, Richard Malik, Karen H Bartlett
1Pilchuck Veterinary Hospital, Snohomish, WA, USA. slpathd@aol.com
Veterinary Clinical Pathology
|January 20, 2011
Summary
Cryptococcosis, a global fungal infection, is being reevaluated due to new species classifications. Cryptococcus gattii is emerging as a significant pathogen, particularly in North America, affecting mammals and birds.
Area of Science:
- Mycology
- Infectious Diseases
- Veterinary Medicine
Background:
- Cryptococcosis is a globally distributed fungal infection.
- Recent taxonomic reclassifications of Cryptococcus species necessitate a reevaluation of the pathogen and its associated diseases.
- Changes in the geographic distribution patterns of Cryptococcus species have been observed.
Purpose of the Study:
- To review the emergence of Cryptococcus gattii as a primary pathogen.
- To summarize the current understanding of diseases caused by Cryptococcus gattii in mammals and birds.
- To highlight the impact of recent species reclassifications on cryptococcosis research.
Main Methods:
- Literature review of recent studies on Cryptococcus species.
- Analysis of epidemiological data on Cryptococcus gattii distribution.
- Synthesis of current knowledge on clinical manifestations and pathology in affected animals.
Main Results:
- Cryptococcus gattii has emerged as a significant primary pathogen, especially in North America.
- The review consolidates information on the pathogenicity of C. gattii in diverse hosts.
- Updated species classifications provide a new framework for understanding cryptococcosis.
Conclusions:
- Cryptococcus gattii represents an evolving threat in infectious diseases.
- Further research is needed to fully understand the epidemiology and clinical impact of C. gattii.
- This review provides a comprehensive overview for clinicians and researchers dealing with cryptococcosis.
Related Concept Videos
Cryptococcal Meningitis
Cryptococcal meningitis is a life-threatening opportunistic infection predominantly associated with HIV/AIDS, accounting for over 100,000 deaths annually worldwide. However, it also affects individuals with other forms of immunosuppression, including those undergoing immunosuppressive therapy, organ transplant recipients, patients with innate immunodeficiencies, and individuals with hematological disorders. The infection is caused mainly by Cryptococcus neoformans and Cryptococcus gattii,...
Toxoplasmosis
Toxoplasmosis, a zoonotic disease caused by the protozoan Toxoplasma gondii, poses significant public health challenges globally due to its high seroprevalence and varied clinical manifestations. As an obligate intracellular parasite, T. gondii can infect all warm-blooded vertebrates, but felids are its only definitive hosts, shedding unsporulated oocysts into the environment. Humans typically acquire the infection through ingestion of tissue cysts in undercooked meat or oocysts from...
Giardiasis
Giardiasis is a globally prevalent intestinal infection caused by the protozoan parasite Giardia duodenalis (also known as G. lamblia or G. intestinalis). This flagellated protozoan is the most frequently identified intestinal parasite in the United States and worldwide. Transmission primarily occurs via the fecal-oral route, with infection arising from ingestion of water or food contaminated with cysts. Individuals in low-resource settings, international travelers, outdoor enthusiasts, daycare...
Infectious Diseases and Their Occurrence
Infectious diseases appear in populations through various transmission patterns, influenced by pathogen characteristics, population immunity, environmental conditions, and social behavior. Understanding these patterns is essential for effective public health surveillance and intervention. These categories—sporadic, outbreak, epidemic, pandemic, and endemic—help frame the nature and scope of disease events.Sporadic diseases occur irregularly and infrequently, without a predictable temporal or...
Fungal Phylum Microsporidia
Microsporidia are a group of obligate intracellular fungi that were initially classified as protists but were later reclassified based on phylogenetic, molecular, and structural evidence linking them to the Chytridiomycota. These unicellular, non-motile organisms are highly specialized parasites that infect a wide range of animal hosts, including humans. They have evolved extensive genomic and metabolic reductions, making them highly dependent on their hosts for survival.Morphology and Genomic...
Tuberculosis
Tuberculosis (TB) remains a significant global health concern, primarily targeting the lungs and spreading through airborne transmission. Infection begins when aerosolized droplet nuclei, expelled by an individual with active TB, are inhaled by another person. These microscopic particles carry Mycobacterium tuberculosis, the causative agent of TB. Upon reaching the alveoli, the bacilli are engulfed by alveolar macrophages. However, due to their specialized lipid-rich cell wall, these pathogens...

