[Blueboard] BioSeminar on Wednesday, November 28, 2007

rjulian at ateneo.edu rjulian at ateneo.edu
Mon Nov 26 13:12:54 PHT 2007


The Department of Biology and The Biological Organization (eXplore,
eXperience, eXcel) would like to invite the Ateneo Community to the
BioSeminar Series which starts on Wednesday, November 28, 2007 at SEC Lec
B/SEC-B201 from 4:30 to 6:00 PM. Dr. Ernesto Balolong of the Department of
Biology will present his paper with the following topic:


PREVALENCE ESTIMATES AND ASSOCIATION OF  Schistosoma japonicum  INFECTION
IN HUMANS AND ANIMALS,  SAMAR PROVINCE

E. BALOLONG Jr., T.J. FERNANDEZ, R. OLVEDA H. CARABIN, A.L. WILLINGHAM,
S.T. McGARVEY AND , L. JOSEPH

Faculty, Biology Department, Ateneo de Manila University
Faculty of Veterinary Medicine, Leyte State University, Baybay, Leyte, the
Philippines;
Research Institute for Tropical Medicine, Alabang, the Philippines;
 University of Oklahoma, USA;
Royal Veterinary & Agricultural University, Denmark;
 Brown University, USA. ;
 Montreal General Hospital, Canada



Schistosomiasis affects 200 million people in 74 countries worldwide; 120
million of these are symptomatic and 20 million have severe disease.
Unlike other schistosome species affecting humans, Schistosoma japonicum
is a true zoonosis, infecting 46 species of mammals, including humans,
all of which are definitive hosts necessary for transmitting the
infection.

Human schistosomiasis prevalence in the Philippines decreased dramatically
from 17.3% in 1975 to a new equilibrium of 4.7% in 1997. This limited
success has been attributed to the regular use of praziquantel starting
in 1980 combined with both passive and active case detection.  One reason
for the inability to bring the infection level down further to elimination
could be the presence of animal reservoir hosts. Infected animals may be
contributing to transmission despite regular anti-schistosomal treatment
of human communities.

The objective of the study was to estimate and compare the prevalence of
S. japonicum infection at baseline and follow-up  with mass treatment
after the initial sampling. The strength of association of  Schistosoma
infection between animals and humans across 50 barangays in Samar
Province was also determined.


Hope to see you there!



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