Impact of environmental conditions on the survival of cryptosporidium and Giardia on environmental surfaces

Absar Alum, Isra M. Absar, Hamas Asaad, Joseph R. Rubino, M. Khalid Ijaz

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

The objective of this study was to find out the impact of environmental conditions on the survival of intestinal parasites on environmental surfaces commonly implicated in the transmission of these parasites. The study was performed by incubating Cryptosporidium and Giardia (oo)cysts on environmentally relevant surfaces such as brushed stainless steel, formica, ceramic, fabric, and skin. Parallel experiments were conducted using clean and soiled coupons incubated under three temperatures. The die-off coefficient rates (K) were calculated using first-order exponential formula. For both parasites, the fastest die-off was recorded on fabric, followed by ceramic, formica, skin, and steel. Die-off rates were directly correlated to the incubation temperatures and surface porosity. The presence of organic matter enhanced the survivability of the resting stages of test parasites. The decay rates calculated in this study can be used in models for public health decision-making process and highlights the mitigation role of hand hygiene agents in their prevention and control.

Original languageEnglish (US)
Article number210385
JournalInterdisciplinary Perspectives on Infectious Diseases
Volume2014
DOIs
StatePublished - Jan 1 2014

Fingerprint

Giardia
Cryptosporidium
Parasites
Ceramics
Hand Hygiene
Skin
Temperature
Porosity
Steel
Stainless Steel
Cysts
Decision Making
Public Health

ASJC Scopus subject areas

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

Cite this

Impact of environmental conditions on the survival of cryptosporidium and Giardia on environmental surfaces. / Alum, Absar; Absar, Isra M.; Asaad, Hamas; Rubino, Joseph R.; Ijaz, M. Khalid.

In: Interdisciplinary Perspectives on Infectious Diseases, Vol. 2014, 210385, 01.01.2014.

Research output: Contribution to journalArticle

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