the immunogenicity of γ-irradiated tachyzoites of a highly virulent strain of toxoplasma gondii (rh strain) was investigated. immunized mice survived challenge infection and displayed increased interferon gamma (inf-γ ) production. on the other hand, nonimmunized controls died after 10 days and displayed a significantly decreased lymphoproliferative response to concanavalin a (con a). no tachyz...

a serum survey was conducted to determine the immune status of children 2 months to 6 years old to polio virus type i, ii and iii related to the history of oral polio vaccination in fashapouye (a rural area in the south of teheran). 566 serum samples were obtained from children in 9 different villages and microneutra lization test was performed on 1;10 dilution of these sera. the study revealed...

Immunization is a way to increase person's immunity disease, so that when he later exposed the disease does not become sick. According World Health Organization (WHO) in 2014 as many 22.6 million children worldwide were covered by routine immunization. In 2015 an estimated 19.9 babies achieved with immunization services such 3 doses of DTP vaccine. This type research uses analytical survey meth...