While it might be challenging to make one particular flu virus, like mutH5N1, it is not hard to try to breed new flu viruses.
Newer 'designer' agents have addressed some of these concerns, in particular, a new breed of oncolytic virus: JX-594, a genetically engineered pox virus, is showing promise.
Still, health officials expected the West Nile virus to continue to pose the worst risk in urban setting because the species of mosquito that frequently carry the virus breed well in urban crevices that collect rain, such as storm drains, potholes and sewer pipes.
In Recife, open sewage pipes, inadequate sanitation and limited garbage management means that mosquitoes, which carry the Zika virus, breed at a high rate.
Other reports document factors beside the neuropathogenicity of the virus (breed, sex, age or vaccination) that may contribute to the risk to develop severe EHM after EHV-1 infection and may be also responsible for the good outcomes in this outbreak [ 6, 26, 27].
Mosquitoes carrying dengue viruses mainly breed in water containers in the house and on the patio.
These results suggest a kind of variation in breed susceptibility to the viruses.
THE recent rain and hot muggy weather has mixed up an alluring soup for mosquitoes infected with West Nile virus to breed and bite, state health officials said this past week.
Added to failure to disclose stocks of media in which germs and deadly viruses are bred, Iraqi refusal to make available unrestricted access to scientific brains (and their spouses and aides) would be a breach so material as to overwhelm even French objections.
He added, "A few months after we came up with this, Harvard researchers issued a paper: 'Drought breeds West Nile virus".' DAVID M. HERSZENHORN.
The virus breeds in our silence and multiplies in our ignorance of its true nature.
