@article {15442, title = {The effect of chlorine and chloramine on schistosome ova and miracidia}, journal = {Bulletin of National Institute of Health Sciences}, volume = {2}, number = {189}, year = {1947}, note = {Journal Article
Not Available}, pages = {173-9}, abstract = {

\" Hatched miracidia of S. yaponicum were killed within 30 minutes after chlorination with total 30-minute residuals of 0.2 and 0.4 p.p.m. Similarly, they were killed in chloramine solutions with 30-minute chloramine residuals of 0.3 and 0.4 p.p.m. S. mansoni miracidia were killed within 30 minutes after chlorination which resulted in total residuals at 30 minutes varying from 0.2 p.p.m. to 0.6 p.p.m. and less than 0.1 p.p.m. free chlorine present.

\" Ova of S. japonicum are more resistant to chlorination than are miracidia. Ova were consistently killed within 30 minutes only in tests in which the 30-minute total residuals varied from 3.9 to 11 p.p.m.

\" A few ova survived 2-hour treatment with chlorine and chloramine concentrations of 1.52 and 1.65 p.p.m. and 30-minute residuals of 0.75 and 1.1 p.p.m. respectively. No ova survived in one test after an applied chloramine concentration of 1.9 p.p.m. and a 2-hour chloramine residual of 0.5 p.p.m. Ova were killed in tests with an applied chlorine of approximately 2 p.p.m. and 2-hours residuals varying from 0.7 to 1.4 p.p.m.

}, keywords = {*Chloramines, *Chlorine, *Ions, *Mechlorethamine, *Schistosoma, *Schistosomatidae, Animals, Humans}, author = {Jones, M. F. and Hummel, M. S.} }