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|Title: ||Probabilistic quantitative microbial risk assessment model of farmer exposure to Cryptosporidium spp. in irrigation water within Kumasi Metropolis-Ghana|
|Authors: ||Owusu-Ansah, Emmanuel de-Graft Johnson|
Mills-Robertson, Felix C.
Abaidoo, Robert C.
Quantitative microbial risk assessment
|Issue Date: ||30-Jun-2017|
|Publisher: ||Elsevier B.V.|
|Citation: ||Microbial Risk Analysis 6 (2017) 1–8|
|Abstract: ||Cryptosporidium is a protozoan parasite which can be transmitted via food and water. Some studies have shown
irrigation water to be routes of transmission for Cryptosporidium into the food chain, however, little information
is known about Cryptosporidium levels in wastewater used for irrigation in the Kumasi Metropolis of Ghana.
Kumasi and for that matter Ghana is not immune to the widespread practice of wastewater irrigation for farm
produce in developing countries which has attracted attention of both, policy makers and academia. However,
most previous studies of microbial risk assessment focus on the possible health effects and risk estimation for
consumers of wastewater irrigated produce, whereas farmers who actually come into direct contact with the
wastewater have received little attention. This study estimated the possible risk/diseases from farmer exposure
to Cryptosporidium, a zoonotic pathogen causing gastroenteritis. The results indicate high positive levels of
Cryptosporidium in the irrigation water, however, the levels of Cryptosporidium decreases during the rainfall
seasons, risk assessment results show that, farmers face a higher risk of being infected by Cryptosporidium due to
frequent exposure to wastewater. An adoption of a possible on-farm wastewater treatment option was found to
reduce the risk of infection of the farmers. The results of this study highlight the need for a proactive policy to
integrate a multi-barrier approach to reduce direct contact of farmers with wastewater for irrigation, to minimise
risk of infection.|
|Description: ||An article published by Elsevier B.V. and also available at dx.doi.org/10.1016/j.mran.2017.06.001|
|Appears in Collections:||College of Science|
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