Global distribution, public health and clinical impact of the protozoan pathogen cryptosporidium

Lorenza Putignani, Donato Menichella

Research output: Contribution to journalArticlepeer-review


Cryptosporidium spp. are coccidians, oocysts-forming apicomplexan protozoa, which complete their life cycle both in humans and animals, through zoonotic and anthroponotic transmission, causing cryptosporidiosis. The global burden of this disease is still underascertained, due to a conundrum transmission modality, only partially unveiled, and on a plethora of detection systems still inadequate or only partially applied for worldwide surveillance. In children, cryptosporidiosis encumber is even less recorded and often misidentified due to physiological reasons such as early-age unpaired immunological response. Furthermore, malnutrition in underdeveloped countries or clinical underestimation of protozoan etiology in developed countries contribute to the underestimation of the worldwide burden. Principal key indicators of the parasite distribution were associated to environmental (e.g., geographic and temporal clusters, etc.) and host determinants of the infection (e.g., age, immunological status, travels, community behaviours). The distribution was geographically mapped to provide an updated picture of the global parasite ecosystems. The present paper aims to provide, by a critical analysis of existing literature, a link between observational epidemiological records and new insights on public health, and diagnostic and clinical impact of cryptosporidiosis.

Original languageEnglish
Article number753512
JournalInterdisciplinary Perspectives on Infectious Diseases
Publication statusPublished - 2010

ASJC Scopus subject areas

  • Infectious Diseases
  • Microbiology (medical)
  • Microbiology
  • Parasitology
  • Virology


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