Description of the economicals and cows’ health impacts of Cryptosporidiosis in the 2 seas area
The Cryptosporidiosis is a major health issue for the reared animals. Indeed, it causes diarrheas for the calves during 4 to 15 days. This disease can induce mortality in 5 to 10% cases, or rarely in 30 % cases if Cryptosporidiosis is associated with other pathogens. In countries from the 2seas area, Cryptosporidium prevalence is high and ranges from 45% to 74% (Fig 1)
The Cryptosporidiosis is present both in developed and developing countries but the prevalence is stronger in developing countries because of the lack of hygiene and of the large number of immunodeficient people. Cryptosporidiosis is estimated to cause more than 200 000 deaths per year (ref). Cryptosporidium can be considered as a potential bioterrorist agent, thus, it is important to improve the detection tools and instruments in the future.
Cryptosporidiosis can have a strong economical impact: in 1993 in Milwaukee (USA), 403 000 contaminated people led to an estimated cost of 100 millions $. For the dairy cows farms, this parasite economic impact is due to the loss of productivity, cost of treatment, cost of the in situ detection tools, additional labor costs, cost of dead calves, growth rate impairment… No precise value on economic impact in dairy cows farms are available. One of the purpose of the H4DC project is to define exactly the loss of money caused by Cryptosporidiosis.