V. Disease in a Normal Host

Keyword(s):  
JAMA ◽  
1983 ◽  
Vol 250 (20) ◽  
pp. 2791 ◽  
Author(s):  
Donald R. Graham
Keyword(s):  

1973 ◽  
Vol 59 (1) ◽  
pp. 198 ◽  
Author(s):  
Lillian F. Mayberry ◽  
William C. Marquardt
Keyword(s):  

1989 ◽  
Vol 159 (3) ◽  
pp. 596-597 ◽  
Author(s):  
Nathan Shaffer ◽  
Lee Moore
Keyword(s):  

1962 ◽  
Vol 48 (2) ◽  
pp. 242-247 ◽  
Author(s):  
G. R. Greenberg ◽  
R. L. Somerville ◽  
S. DeWolf
Keyword(s):  

2003 ◽  
Vol 71 (7) ◽  
pp. 3852-3856 ◽  
Author(s):  
F. Gigliotti ◽  
A. G. Harmsen ◽  
T. W. Wright

ABSTRACT By using mouse models, it has been shown that Pneumocystis carinii f. sp. muris can be transmitted to immunocompetent mice that are exposed to immunosuppressed mice with active P. carinii pneumonia. We sought to determine whether P. carinii f. sp. muris could be transmitted between normal mice. The rationale for these experiments was to demonstrate whether the normal host could serve as the reservoir of organisms that produce Pcp when the organism is acquired by the immunosuppressed host. Under the conditions of these experiments, normal mice are able to be infected by brief cohousing with P. carinii-infected SCID mice. There was active replication of organisms in the normal host such that the organism could be transmitted to other normal mice, again with active replication. Mice that had seroconverted after exposure to P. carinii-infected SCID mice were more resistant to infection when reexposed. Infection in normal mice was well tolerated with minimal effects on dynamic lung compliance. We speculate, based on these results, that transmission from normal host to normal host, as an asymptomatic or minimally symptomatic infection, could be a way to maintain this opportunistic pathogen in the environment.


1969 ◽  
Vol 58 (4) ◽  
pp. 787-792 ◽  
Author(s):  
K. L. S. Harley ◽  
R. K. Kunimoto

Results are presented of a study of the host specificity of Plagiohammus spinipennis (Thorns.) under conditions that emphasised the behaviour of the insect in the field in the presence of an abundance of its host-plant, Lantana cantata. The results of this and previous studies are compared.The adult beetles fed on various test plants but had little or no deleterious effect. Oviposition was restricted to the insect’s normal host, L. camara, and to Cordia ambigua, G. grandiflora, G. curassavica, Lippia umbellata, Lippia sp. (? miocephala), Tectona grandis and Vernonia deppeana. Of these, only T. grandis is of commercial importance. Larvae were unable to complete their development on this plant and died after feeding briefly. Development by larvae of P. spinipennis was restricted to a small group of mostly related, unimportant plant species as well as the serious weed L. camara.P. spinipennis thus shows a high degree of host specificity, and was therefore liberated for control of Lantana camara in Australia in 1967.


1991 ◽  
Vol 20 (6) ◽  
pp. 1577-1582 ◽  
Author(s):  
Clarence Dan Johnson ◽  
David H. Siemens
Keyword(s):  

Sign in / Sign up

Export Citation Format

Share Document