Abstract
California bunyaviruses cause encephalitis in mammalian hosts after peripheral infection. The virulence of these viruses is determined by their ability to replicate sequentially in striated muscle, cause viremia, and invade and replicate in the central nervous system. These viruses are also able to infect vector mosquitoes following ingestion of a blood meal containing virus. Bunyaviruses are negative stranded RNA viruses with a trisegmented genome, and the large, medium, and small RNA segments encode the polymerase, the glycoproteins, and the nucleoprotein, respectively. Reassortants between virulent and avirulent virus clones have been used to map virulence determinants in mice as well as determinants of infectivity in mosquitoes. Attenuation in mice and infectivity in mosquitoes of some virus clones maps to the medium RNA segment, implying that the virus glycoproteins, which are involved in virus entry, play a role in virulence. Attenuation in mice and mosquito infectivity of other clones maps to the large RNA segment, suggesting that cell-specific differences in the function of the viral polymerase can also determine virulence and host range.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 117-138 |
| Number of pages | 22 |
| Journal | Annual Review of Microbiology |
| Volume | 47 |
| State | Published - 1993 |
| Externally published | Yes |
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Keywords
- animal models
- arboviruses
- California serogroup viruses
- virus genetics
ASJC Scopus subject areas
- Applied Microbiology and Biotechnology
- Microbiology
Cite this
Molecular determinants of the virulence and infectivity of California serogroup bunyaviruses. / Griot, Christian; Gonzalez-Scarano, Francisco; Nathanson, Neal.
In: Annual Review of Microbiology, Vol. 47, 1993, p. 117-138.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Molecular determinants of the virulence and infectivity of California serogroup bunyaviruses
AU - Griot, Christian
AU - Gonzalez-Scarano, Francisco
AU - Nathanson, Neal
PY - 1993
Y1 - 1993
N2 - California bunyaviruses cause encephalitis in mammalian hosts after peripheral infection. The virulence of these viruses is determined by their ability to replicate sequentially in striated muscle, cause viremia, and invade and replicate in the central nervous system. These viruses are also able to infect vector mosquitoes following ingestion of a blood meal containing virus. Bunyaviruses are negative stranded RNA viruses with a trisegmented genome, and the large, medium, and small RNA segments encode the polymerase, the glycoproteins, and the nucleoprotein, respectively. Reassortants between virulent and avirulent virus clones have been used to map virulence determinants in mice as well as determinants of infectivity in mosquitoes. Attenuation in mice and infectivity in mosquitoes of some virus clones maps to the medium RNA segment, implying that the virus glycoproteins, which are involved in virus entry, play a role in virulence. Attenuation in mice and mosquito infectivity of other clones maps to the large RNA segment, suggesting that cell-specific differences in the function of the viral polymerase can also determine virulence and host range.
AB - California bunyaviruses cause encephalitis in mammalian hosts after peripheral infection. The virulence of these viruses is determined by their ability to replicate sequentially in striated muscle, cause viremia, and invade and replicate in the central nervous system. These viruses are also able to infect vector mosquitoes following ingestion of a blood meal containing virus. Bunyaviruses are negative stranded RNA viruses with a trisegmented genome, and the large, medium, and small RNA segments encode the polymerase, the glycoproteins, and the nucleoprotein, respectively. Reassortants between virulent and avirulent virus clones have been used to map virulence determinants in mice as well as determinants of infectivity in mosquitoes. Attenuation in mice and infectivity in mosquitoes of some virus clones maps to the medium RNA segment, implying that the virus glycoproteins, which are involved in virus entry, play a role in virulence. Attenuation in mice and mosquito infectivity of other clones maps to the large RNA segment, suggesting that cell-specific differences in the function of the viral polymerase can also determine virulence and host range.
KW - animal models
KW - arboviruses
KW - California serogroup viruses
KW - virus genetics
UR - http://www.scopus.com/inward/record.url?scp=0027524270&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0027524270&partnerID=8YFLogxK
M3 - Article
C2 - 8257095
AN - SCOPUS:0027524270
VL - 47
SP - 117
EP - 138
JO - Annual Review of Microbiology
JF - Annual Review of Microbiology
SN - 0066-4227
ER -