lentogenic

len·to·gen·ic

(len'tō-jen'ik),
Denoting the virulence of a virus capable of inducing lethal infection in embryonic hosts after a long incubation period and an inapparent infection in immature and adult hosts; the term is used in characterizing Newcastle disease virus, particularly strains used as vaccines administered in water or as sprays, that is, mild or avirulent strains.
[L. lentus, sluggish, inactive, + G. -gen, producing]

lentogenic

only marginally virulent. See also newcastle disease.
References in periodicals archive ?
Study of the seroconversion of the thermostable live attenuated lentogenic strain (local isolate) ND vaccine in layer and backyard birds.
The cleavage site of the velogenic and/or mesogeneic strains of NDVs has amino acid sequence motif 112R/KRQR/KRF117 in the F protein, whereas the lentogenic viruses have amino acid sequence of 112G/EK/RQG/ERL117 (Wei et al.
Effects of Vaccination with Lentogenic Vaccine and Challenge with Virulent Newcastle Disease Virus on Egg Production in Commercial and SPF Chickens.
The different expression of immune-related cytokine genes in response to velogenic and lentogenic Newcastle disease viruses infection in chicken peripheral blood.
It belong to the family paramyxoviridae based on pathogenicity, the virus can be differentiated in to lentogenic mesogenic, velogenic strain.
This includes viscerotropic velogenic, neurotropic velogenic, mesogenic, lentogenic, and asymptomatic enteric forms.
ND is mostly caused by velogenic strains of NDV rather than mesogenic or lentogenic strains which about 80-100% and 25% mortality, respectively, from disease [3-5].
There are three important pathotypes of ND virus, Velogenic, Mesogenic and Lentogenic.
based on the virulence in infected birds, NDV has been classified into three pathotypes: Lentogenic, which causes mild or in-apparent respiratory disease, Mesogenic, which produces respiratory and nervous signs with moderate mortality and the velogenic, which causes severe gastrointestinal lesions and neurological disease resulting in death of infected birds (14).
lentogenic (nonvirulent) strains that produce mild signs with negligible mortality.
The lyophilized samples contained La Sota--like strains classified as lentogenic strains.
Comparative morphometric analysis of vaccine virulence of some lentogenic strains of Newcastle disease virus in tracheas of SPF chickens Arq.