In Europe, coccida has been found to cause enteritis, diarrhea and varying weight gain in suckling pigs. Most countries use the drug Baycox as a prevention to coccida, but in Canada the drug was banned in 2005. Also there is little to no information on the prevalence and impact of the parasite. The objectives of this study are to determine the importance of coccidia infections in suckling pigs, identify the preventative treatments used by Canadian veterinarians for coccidia infected pigs and to evaluate the efficacy of the most practical method. For objective one 50 swine herds were selected, the sizes of the operations ranged from 30-1700 sows. About 10 litters were randomly selected on each farm. A fecal sample was collected on 3-5  pigs in every litter and then tested to see if it was diarrheic and if coccidia was present. Coccidia was found in 70% of farms and on those farms the infection rate ranged from 5-100%. On farms that had tested positive for coccidia the average weight at 21 days of age was 400g less compared to negative farms. Discussions with swine vets revealed that the two most common treatment protocols were ad libitum provision of Deccox mixed with oral iron throughout the suckling period and a single treatment of Clinacox in the first week of the pigs life. These two treatments were evaluated and found that neither reduced the risk of coccidia infections or the risk of diarrhea. Also neither had beneficial effects on growth rates. The research concluded by saying coccodia is common among piglets aged 7-21 days of age and causes diarrhea and the current treatment methods appeared to not have any beneficial impact.