Cyclospora cayetanensis: oocyst characteristics and excystation.

In Thailand in 1999-2000, Cyclospora oocysts from two HIV-infected patients and one patient with prolonged diarrhea were detected by formalin-ether concentration technique. Sporulation was performed by mixing stool samples in 2.5% potassium dichromate solution, sporulated oocysts were then treated with various solutions before mechanical rupturing in order to establish excystation, fewer than 10% of the sporulated oocysts could be excysted.

Prevalence of congenital cytomegalovirus and Toxoplasma antibodies in Thailand.

Prevalence of CMV and toxoplasmosis antibodies were determined among normal newborn infants, suspected congenital neonates and pregnant women. Seropositive rates of CMV and toxoplasmosis were similar. Most of the pregnant women had CMV antibodies.

In vitro studies on the sensitivity of local Entamoeba histolytica to anti-amoebic drugs.

The in vitro activity of drugs, namely dehydroemetine, ornidazole, metronidazole and tinidazole were determined against the locally isolated strains of E. histolytica in Thailand. The test was performed in liquid monophasic medium, i.

A study on the diagnostic methods for Trichomonas vaginalis infection.

A comparison of the sensitivity of the wet smear, Papanicolaou's stained smear, and culture in Cystein-Peptone-Liver-Maltose (CPLM) medium for the diagnosis of T. vaginalis infection was undertaken in 1, 197 female subjects, both with and without gynaecological disorders. The wet smear method gave 15.