[Research on Culex tritaeniorhynchus and Culex pipiens quinquefasciatus intrathoracically infected with attenuated Japanese encephalitis virus SA14-14-2 vaccine strain].
Zhonghua Shi Yan He Lin Chuang Bing Du Xue Za Zhi
; 19(4): 344-6, 2005 Dec.
Article
em Zh
| MEDLINE
| ID: mdl-16415992
ABSTRACT
BACKGROUND:
To determine if the attenuated Japanese encephalitis (JE) virus SA14-14-2 vaccine strain interacts efficiently with Culex tritaeniorhynchus and Culex pipiens quinquefasciatus, and further to acquire a new knowledge of its characteristics and safety for human beings.METHODS:
Laboratory colonies of the two species of mosquitoes were set up and were inoculated intrathoracically with the attenuated vaccine virus and wild JE virus (Nak), both of which were used with different dilution from 10(-1) to 10(-9). Subsequently, the virus titers in the mosquitoes were detected by the plaque assay.RESULTS:
Inoculated with the vaccine strain, two species of mosquitoes were infected with the titers ranged from 10(0)-10(-3), and the maximum titers in Culex tritaeniorhynchus and Culex pipiens quinquefasciatus were 4.48 logPFU/ml and 5.63 logPFU/ml, respectively. Inoculated with wild JE virus, Culex pipiens quinquefasciatus was infected with titers ranged from 10(0)-10(-5), and the maximum titer in the mosquitoes was 6.59; Culex tritaeniorhynchus was infected with titers ranged from 10(0)-10(-4) and the maximum titer was 5.74 logPFU/ml.CONCLUSION:
By intrathoracic infection, the attenuated JE virus SA14-14-2 vaccine strain can replicate in both species of mosquitoes.
Buscar no Google
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Culex
/
Vírus da Encefalite Japonesa (Espécie)
/
Insetos Vetores
Limite:
Animals
/
Humans
Idioma:
Zh
Revista:
Zhonghua Shi Yan He Lin Chuang Bing Du Xue Za Zhi
Assunto da revista:
VIROLOGIA
Ano de publicação:
2005
Tipo de documento:
Article
País de afiliação:
China