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Cryptosporidiosis: A mini review
K Vanathy1, Subhash Chandra Parija1, Jharna Mandal1
1Department of Microbiology, Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, India.
Abstract:
Cryptosporidium spp. was first described in mice in 1907. The first human case was reported in an acquired immune deficiency syndrome patient after which it gained importance. It is one of the emerging protozoan parasites according to the Centre of Disease Control and Prevention. The special structure which is present in them such as rhoptries and micronemes are responsible for their virulence and pathogenicity. They can be transmitted from animals, human to human, water, food, and tends to cause waterborne outbreaks. The clinical manifestation in immunocompetent patient is self-limiting when compared to immunocompromised individual where it causes chronic diarrhea not responding to treatment. Hence, it is necessary to diagnose them early to prevent any complication in these patients. There are many investigations currently available such as stool microscopy after Sheather's concentration technique, rapid test targeting specific antigen, molecular methods, and imaging techniques.
Insights
Cryptosporidium is an emerging protozoan parasite causing waterborne outbreaks. Early diagnosis is crucial for effective treatment, especially in immunocompromised individuals.
Area of Science:
- Medical Parasitology
- Infectious Diseases
- Public Health
Background:
- Cryptosporidium, first identified in mice in 1907, gained significance after its first human case in an AIDS patient.
- Recognized as an emerging protozoan parasite by the CDC, Cryptosporidium possesses unique structures like rhoptries and micronemes contributing to its virulence.
- Transmission occurs through various routes including animals, humans, water, and food, frequently leading to waterborne outbreaks.
Purpose of the Study:
- To highlight the significance of Cryptosporidium as an emerging protozoan parasite.
- To underscore the importance of early diagnosis for managing Cryptosporidium infections.
- To provide an overview of diagnostic methods for Cryptosporidium.
Main Methods:
- Review of existing literature on Cryptosporidium.
- Discussion of Cryptosporidium's transmission routes and clinical manifestations.
- Overview of current diagnostic techniques.
Main Results:
- Cryptosporidium infections present with self-limiting symptoms in immunocompetent individuals but cause chronic, treatment-resistant diarrhea in immunocompromised patients.
- Virulence and pathogenicity are linked to specialized structures such as rhoptries and micronemes.
- Various diagnostic methods are available, including stool microscopy, rapid antigen tests, molecular techniques, and imaging.
Conclusions:
- Early and accurate diagnosis of Cryptosporidium is essential for preventing complications, particularly in immunocompromised individuals.
- Understanding transmission dynamics and clinical presentations aids in disease control.
- A range of diagnostic tools are available to detect Cryptosporidium infections.
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