Dog's influenza breaks out in U.S.A. Have not infected the mankind yet It is possible not to exclude from making a variation
Not infecting the mankind at present, it is possible not to but does not get rid of the virus to make a variation
Have not developed corresponding vaccine The expert proposes dog's master should be careful
At present, no kinds of vaccine can resist this kind of virus. So the experts propose dog's hosts take very carefully.
When Katz advises people to walk a dog, don't let own pet dog and other puppy play at will, you had better inquire the other side's master in advance: Whether its pet was once housed collectively.
But he says, I'm afraid this kind of precautionary measures can not play a too much role either, because the dog does not have any antibody to this kind of virus in the body. "Can not avoid contacting this kind of virus at all according to normal raising the dog way. "
The first type H1N1 influenza of news of New Bulletin wreaks havoc in the whole world, another influenza breaks out in U.S.A. silently too, estimate that as many as ten thousand infect the case. The mortality of such fatal influenza may be up to 8%, the ones that killed more than ten million people's influenza of Spain than 1918 are 2% higher. But according to studying, this kind of influenza virus travels only on dog temporarily at present.
The snub nose dog is the most dangerous
The scientist believed, this kind of H3N8 dog's influenza was from horses' mutation 5 years ago, and infected on the dog, but never infected the mankind. Last week, United States Department of Agriculture had already sanctioned introducing vaccine directed against this kind of influenza.
" the New York Times " points out, in fact this kind of influenza has spread in U.S.A. already for some time, advocate peace veterinarian except dog, mention while being little very. The severely afflicated area of dog's influenza centres in the suburbs of the north of Florida, Philadelphia, Denver and New York now, ten thousand dogs catch an illness. The veterinarian finds the snub nose dog such as tiger's dog, starling's dog, belong to endangering the dog group high in this epidemic disease tide.
Mortality is extremely high
It is still an unknown number whether the virus will attack the mankind now. American expert Crowford says: " I do not think we will know how this virus is next " . She began to study this virus in January of 2004, made her notice this kind of virus at first, it is the Greyhound of the field of a dog of Florida that presents mysterious cough and pneumonia, is up to thirty percent and die among them. In one year, she found the trace of this kind of virus in U.S.A. 7 states.
The expert is anxious, the virus can kill ten percent for 70 million dogs of U.S.A. at most. In order to eliminate the virus, some dog sanctuaries have even already killed all dogs in order to sterilize.
That is happy is that the spread speed of virus is much slower than Crowford's expectancy. The virus is found in 30 states temporarily, but propagate the place to mostly limit at the place where dogs concentrate, as if dog's sanctuary, pet shop, dog's field and dog's school,etc..
Person who finds another one of virus, Connell and Dr. Du BoWei of the university say, infect general so slow speed because virus " adapt to, survive on dog yet It has gone through 5 mutations to the horse turns into the dog, it has already prevailed for more than 40 years on horse " . But he points out, if pass a few mutations, the problem " very seriously variable " more . (Zong He)
H3N8 dog's influenza
H3N8 dog's influenza generally spreads only between dog and dog. An investigation indicates this kind of breathing problem is caused by horse's influenza H3N8 virus. The scientist thinks this kind of virus is passed from the horse to the dog, then spread between dog and dog, derive out special H3N8 dog influenza virus. The expert thinks this virus is a kind of new pathogen appearing on dog. But the scientist thinks, dog's influenza is not still infective to people at present, the mutant possibility takes place to but not get rid of the virus.
The dog should be careful when coughing
Initial symptom is coughing, may develop into pneumonia subsequently after the dog is infected with the virus, with fatal complication sometimes.
It is extensive to propagate the route
University of Florida immunologist reach Crowford, say the intersection of dog and influenza travel in the easy dog group that house together while being hard, wait for public place travel in street probably too, dog take a sniff at, come, take a sniff at, go, share, drink the water while being same record may infect at street. Can spread each other except the dogs, the virus can spread to the healthy dog via the person who contacts the disease dog too.
The virus is infective and strong
An animal veterinarian Larsell and Katz of the clinic in New York says to " the New York Times ", he has already taken over 5 this kind of cases at least. Because the virus of dog is infective and very strong, when the pet dog that dog's host's tape coughs ceaselessly goes to a doctor, whether Katz has to take a certain separation measure, or let dog of these diseases wait outside the clinic, or far stay in a corner of the clinic. The place that the disease dog contacts must all be sterilized. (Zong He)
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