Disease information

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The bird influenza or influenza of the chicken, is an infectious disease that attacks the birds. It has been caused by stocks To of the virus of the influenza and was identified for the first time in Italy for more than one hundred years and now 15 subtypes virus of the bird influenza are known that circulate between the populations of birds.

This disease appears anywhere in the world and it is considered that all the birds are vulnerable to her, although some species are more resistant to the infection that others.

In the birds, the infection causes an ample phantom of symptoms that go from slight to contagious and quickly mortal pictures highly, which gives rise to serious epidemics. This last one is what it is known like "highly pathogenic bird influenza". This variant is characterized by its fast appearance, the gravity of the symptoms and its sudden evolution, with a mortality very near the 100%.

The transmission to the human beings, only takes place by direct bonding and repeated with the infected birds or their excrements. I infect is not easy and it is only possible in exceptional circumstances (one has only occurred in exposed people of form continued to birds, in farms or markets of alive animals)

The established control programs at world - wide level by the World - wide Organization of the Health, have allowed to follow the evolution of the bud day day, with which it is known in what countries could take place contagios and before it to establish the suitable preventive measures.

It is important that the people who have traveled to risk regions, like: Cambodia, China, Hong Kong, Indonesia, Japan, Korea, Laos, Thailand and Vietnam among others and return with some symptom, they go immediately to the institutions of health and comment with its antecedent east doctor to make the studies and to take pertinent the preventive measures.

With respect to their origin, 15 subtypes virus of the influenza are known that infect the birds, which represents ample reservorio of virus gripales, which they are potentially circulating, since the migratory aquatic birds, mainly the wild ducks, in addition to being reservorio natural of the virus of the bird influenza, are also most resistant to the infection. The domestic poultries, in individual the chickens and the turkeys, are very vulnerable to the epidemics of sudden influenza, reason why in seasons of epidemic thousands of species die.

In addition to being highly contagious, the virus of the bird influenza the alive animals markets of and by means of equipment transmit themselves easily in, vehicles, cages or contaminated clothes of the people who handle to the contaminated birds.

Recent investigations on this virus have demonstrated that some that apparently are of low risk, can mutar and be transformed into virus very dangerous, in addition the virus can survive during long periods in the atmosphere, mainly to low temperatures, but even so, certain level of protection can be obtained establishing the measures implemented by the sanitary authorities.

The group of forty of the infected farms and the sacrifice of the infected populations of habitual birds or potentially exposed are measured of control to prevent the propagation to other farms and the possible root with the virus in the population of poultries of a country.

The important thing is to apply the suitable preventive measures to avoid pandemics and epidemics long play, like which there were in Mexico in 1992 began with a low pathogenicity, are to say with apparent little danger, but it evolved towards a highly deadly form and it was not possible to be controlled until 1995.

IMPORTANT: The content of this note is informative and it does not replace the medical diagnosis reason why we do not become people in charge on its use.

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