Two Rinderpest Live Virus Vaccines, "Lapinized" and "Lapinied-Avianized"
نویسنده
چکیده
caused by the nature of the parent material and also by leaching in the course of soil formation. f ) Iron. For Japanese paddy soils one percent of active Fe20 l as determined with Mg-ribbon reduction method is critical. Below this value unfavorable effects on the growth of rice may be expected. This threshold value has been adopted for the results of iron determination with a phoco-chemical reduction method which is somewhat more drastic than th:e Mg-ribbon reduction, then soils having less than one percent of iron ox ide may be grouped as "susceptible to deficiency", while these hav ing less than 0. 5 percent as "severely deficient". The number of the iron deficien t soils as grouped here is gi ven in Table 4. Among the three iron oxides, goethite, hamatite and lepidocrosite, which are common in Japanese paddy soils, no lepidocrosite has so far been detected in T hai and Malaysian soi ls.
منابع مشابه
Comparison between the antigenicity of two rinderpest vaccine strains using the neutralization test.
Rinderpest (RP) virus is classified into the Morbillivirus genus belong{ng to Paramyxovirus family, It is generally considered that RP virus has only one serotype. However, it has becn reported by some researchers that there are sorne antigenic differences among RP virus strains [1, 4, 6, 9]. In this report, the two RP vaccine strains, Kabete "O" (RBOK) strain [51 and lapinized and avianized (L...
متن کاملActive Immunization of Cattle with Killed Vaccines Prepared from Cell Cultured Rinderpest Virus
متن کامل
Complete Genome Sequence of Japanese Vaccine Strain LA-AKO of Rinderpest Virus
Rinderpest vaccine strain LA-AKO, which is less virulent especially to highly susceptible Asian cattle breeds, was established from a lapinized vaccine strain by further passages in rabbit and chick embryos. Here, we report the genome sequence of LA-AKO, which currently remains active for the production of an emergent vaccine in Japan.
متن کاملImmunological responses of mice and cattle to baculovirus-expressed F and H proteins of rinderpest virus: lack of protection in the presence of neutralizing antibody.
Rinderpest is a highly contagious viral disease of ruminants and has greater than 95% morbidity and mortality. The etiological agent, rinderpest virus (RPV), is a member of the family Paramyxoviridae and the genus Morbillivirus. Immune responses to both the hemagglutinin (H) and the fusion (F) antigens of morbilliviruses play an important role in the prevention of infection, and only attenuated...
متن کاملEpidemiology and control of rinderpest
Rinderpest arouses many emotions, but none more strong than the feeling of frustration born of our apparent inability to control this simple disease. We know rinderpest is principally transmitted by the movements of infected stock and that it can be curtailed by elementary zoo-sanitary measures — by the closure of markets , by the slaughter of infected animals or by quarantining infected herds....
متن کامل