| a field study on nakayama and beijing strains of japanese encephalitis vaccines. | a field study to compare the immune response of children aged 1-6 years to nakayama and beijing strains je vaccines was carried out in mae hong son province, northwest thailand, where there was low incidence of jev infection. the first and second dose of each vaccine was given 1-2 weeks apart and the third dose was 1 year after the second dose. seroconversion rate was similarly high, about 94% in both groups of vaccinees. at 6 and 12 months after 2 doses of vaccines, the seroconversion rates dro ... | 1995 | 9139377 |