amplifier host

am·pli·fi·er host

a host in which infectious agents multiply rapidly to high levels, providing an important source of infection for vectors in vector-borne diseases.
References in periodicals archive ?
Breeding of pigs, an amplifier host for Japanese Encephalitis has increased sharply in North Bengal and adjoining districts over the past few years due to the steady demand of pork in the region.
The camel is the "amplifier host', he said, just as the civet cat was the amplifier host in China after being bitten by a fruit bat, he said.
Although natural amplifier hosts are known for Dermacentor spp.