Progression of the aviary influenza
The last epidemic of aviary influenza in France goes back to 1948. Fifteen epidemics of aviary influenza followed one another since 1950, including five of great width.
In 1999, between 5 and 6 million birds died in Italy because of stock H7N1 of the flu virus.
More recently, in March and April 2003, the Netherlands and Belgium had to face an epidemic of "influenza of chicken". Several hearths of contamination had appeared in a few weeks. In the Netherlands, a transmission of the virus influenza A/H7N7 to the man was observed in more than 80 cases. A transmission inter human of intra-family type was in addition observed at three people.
An aviary epizooty of influenza was declared in Asia at the beginning of the year 2004. At the beginning of February 2004, approximately 30 dead was declared and of many others were suspected, mainly in Viêt Nam and in Thailand.
This epizooty is due to viral strain H5N1, and was isolated for the first time at the man in 1997, with Hong Kong. Only a Dutch veterinary surgeon who had worked in a contaminated chicken breeding is deceased. Several million poultries was cut down and incinerated. Currently, fifteen sub-types of this virus grippal are known. All do not have same pathological virulence.
Between 2003 and June 2005, one officially listed 54 deaths due to the aviary influenza, including 38 Vietnameses, 12 Inhabitants of Thailand and 4 Kampuchean.
The virus was also already detected in Siberia after 2003. October 8, 2005, the Rumanian authorities declare the first cases of influenza aviary in the delta of the Danube; by measurement of precaution, several hundreds of poultries are killed.
In the province of Balikesir, the North-West of Turkey, identification of the first aviary case of influenza in this leading country, October 10, 2005, European Commission to immediately prohibit the importation of Turkey of alive birds and untreated feathers.
France does not remain less likely about it to be touched by the aviary influenza, that could have terrible consequences.
If you wish to visualize a simulation of the propagation of the aviary influenza in France, to click on one of the 2 attacks:
- attacks weak
- attacks strong
