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Cryptosporidiosis: From Prevention to Treatment, a Narrative Review
Yosra A Helmy1, Hafez M Hafez2
1Department of Veterinary Science, College of Agriculture, Food, and Environment, University of Kentucky, Lexington, KY 40546, USA.
Abstract:
Cryptosporidiosis is a water- and food-borne zoonotic disease caused by the protozoon parasite of the genus Cryptosporidium. C. hominis and C. parvum are the main two species causing infections in humans and animals. The disease can be transmitted by the fecal-oral route as well as the respiratory route. The infective stage (sporulated oocysts) is resistant to different disinfectants including chlorine. Currently, no effective therapeutic drugs or vaccines are available to treat and control Cryptosporidium infection. To prevent cryptosporidiosis in humans and animals, we need to understand better how the disease is spread and transmitted, and how to interrupt its transmission cycle. This review focuses on understanding cryptosporidiosis, including its infective stage, pathogenesis, life cycle, genomics, epidemiology, previous outbreaks, source of the infection, transmission dynamics, host spectrum, risk factors and high-risk groups, the disease in animals and humans, diagnosis, treatment and control, and the prospect of an effective anti-Cryptosporidium vaccine. It also focuses on the role of the One Health approach in managing cryptosporidiosis at the animal-human-environmental interface. The summarized data in this review will help to tackle future Cryptosporidium infections in humans and animals and reduce the disease occurrence.
Insights
Cryptosporidiosis is a zoonotic disease caused by Cryptosporidium parasites, affecting both humans and animals. Understanding its transmission and implementing a One Health approach are crucial for control, as effective treatments and vaccines are lacking.
Area of Science:
- Veterinary Medicine
- Infectious Diseases
- Parasitology
Background:
- Cryptosporidiosis is a significant water- and food-borne zoonotic disease caused by *Cryptosporidium* parasites.
- Key species, *C. hominis* and *C. parvum*, infect humans and animals, with transmission via fecal-oral and respiratory routes.
- The parasite's oocysts are resistant to common disinfectants, and effective treatments or vaccines are currently unavailable.
Purpose of the Study:
- To provide a comprehensive review of cryptosporidiosis, covering its biology, transmission, and epidemiology.
- To explore current challenges in diagnosis, treatment, and control of *Cryptosporidium* infections.
- To highlight the importance of the One Health approach in managing this zoonotic disease.
Main Methods:
- Literature review synthesizing data on *Cryptosporidium* biology, pathogenesis, and transmission dynamics.
- Analysis of epidemiological data, including outbreaks, host spectrum, and risk factors.
- Examination of current diagnostic and therapeutic strategies and vaccine development prospects.
Main Results:
- *Cryptosporidium* exhibits complex transmission cycles across animal and human populations.
- Genomics, epidemiology, and outbreak data reveal critical insights into disease spread.
- The One Health framework is essential for integrated management at the animal-human-environmental interface.
Conclusions:
- A thorough understanding of cryptosporidiosis is vital for developing effective control strategies.
- Integrated approaches, including the One Health strategy, are necessary to mitigate future *Cryptosporidium* infections.
- Further research into vaccines and novel therapeutics is needed to combat this persistent zoonotic disease.
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