Human MxA protein inhibits LaCrosse virus (LAC virus; family Bunyaviridae)
replication in vertebrate cells and MxA-transgenic mice. LAC virus is trans
mitted to humans by Aedes triseriatus mosquitoes. In this report, we have s
hown that transfected mosquito cells expressing the human MxA cDNA are resi
stant to LAC virus but permissive for Sindbis virus (family Togaviridae) in
fection.