Mexico: New H7N3 influenza outbreaks destroy almost 900,000 poultry

Five out­breaks of H7N3 avian flu in poul­try in Mexico’s Jalisco, Gua­na­ju­ato, and Puebla states have killed 40,010 birds and led to the culling of 850,005 oth­ers, the World Orga­ni­za­tion for Ani­mal Health (OIE) reported 8 May 2013. Two of the out­breaks were in Jalisco, includ­ing one that began 1 March 2013 in a 16-bird back­yard flock and one that affected 320,000 birds from 29 April to 2 May 2013 on a com­mer­cial layer farm. Two out­breaks in early April 2013 were con­firmed in Gua­na­ju­ato, one in a heavy breeder flock and one on a fat­ten­ing farm. On one farm 319,398 birds were culled, and on the other 100,601 birds were culled to pre­vent dis­ease spread. The final out­break, in Puebla, began 1 May 2013 and was resolved 7 May 2013. It involved by far the most poul­try killed by the virus, 40,000, with 110,000 addi­tional birds culled. All told, 890,015 poul­try died in the five out­breaks and culls. In April 2013, Mex­i­can author­i­ties said that recent H7N3 out­breaks had destroyed almost four mil­lion poul­try and cost farm­ers about $32 million.

(CIDRAP 5/8/2013)

Mexico: H7N3 influenza outbreaks, culling have killed almost four million poultry

Out­breaks of H7N3 avian flu between 25 March and 1 April 2013 have led to almost four mil­lion poul­try deaths in Gua­na­ju­ato and Jalisco states, reported on 1 April 2013. Offi­cial fig­ures indi­cate that 1,984,000 broil­ers, 847,000 breed­ers, and 918,221 lay­ing hens have died, for a total of 3,749,221, on 52 farms and in four back­yard flocks. In addi­tion, more than 131 mil­lion vac­cine doses have been admin­is­tered to flocks in Jalisco, Aguas­calientes, and Gua­na­ju­ato states, as well as in nine addi­tional “fed­eral enti­ties”. So far, 117 of 158 farms in Gua­na­ju­ato have already been inspected by offi­cials, and H7N3 was found on 25 of them, as well as in two of 195 back­yard flocks. In Jalisco, 27 of 535 farms and two of 135 back­yard flocks tested pos­i­tive. The out­breaks have cost farm­ers $32 mil­lion. Mex­ico culled about 3.8 mil­lion birds in 2012 to help pre­vent dis­ease spread after mul­ti­ple H7N3 out­breaks in Jalisco.

(CIDRAP 4/2/2013)

Mexico: Reports 13 new H7N3 influenza outbreaks

Highly path­o­genic H7N3 avian flu has killed more than 400,000 poul­try on nine farms and in four vil­lage flocks in Jalisco and Gua­na­ju­ato states in Mex­ico, accord­ing to the World Orga­ni­za­tion for Ani­mal Health (OIE) on 23 March 2013. Among almost 2.5 mil­lion sus­cep­ti­ble birds, offi­cials have con­firmed 473,306 cases and 406,509 poul­try deaths in the 13 out­breaks com­bined. On the farms, out­breaks have ranged from 100 to 396,200 cases and from 100 to 388,499 bird deaths. Five of the nine affected farms are in Gua­na­ju­ato, but the farm that houses almost 400,000 of the infected birds is in Jalisco. The vil­lage out­breaks have affected just a hand­ful of birds at each of four loca­tions, two in each state. All of the out­breaks began in Feb­ru­ary 2013. The two states have been at the cen­ter of H7N3 out­breaks in 2012 and 2013 that have killed mil­lions of birds.

(CIDRAP 3/25/2013)