Incidence of parasitic infections of in- and out-patients at Maharaj Nakorn Chiang Mai hospital, Chiang Mai University, Thailand 2012-2016

Objective Th e objective of this study was to determine the incidence of parasitic infections in in- and out-patients at Maharaj Hospital, University, Th ailand during the period 2012 through 2016. Methods Stool, blood, and sputum samples of patients were examined for parasite infections at the laboratory of the Department of Parasitology, Faculty of Medicine, Mai University. Stool samples were examined for intestinal parasites using the formalin-ether concentration technique, modifi ed acid-fast staining, and simple smears. Stool and sputum samples were cultured for Strongyloides stercoralis using an agar plate technique. Blood samples were examined for malarial parasites using Giemsa staining of thick blood fi lms. vivax Th e annual incidence of intestinal parasites during the period 2012 through 2016 decreased signifi cantly from 7.99% to 5.78%. Malaria infections between 2013 and 2016 also decreased from 3.23% to 1.76%, but the change was not statistically signifi cant.