African Swine Fever Epidemic, Poland, 2014-2015.
In Poland, African swine fever (ASF) emerged in February 2014; by August 2015, the virus had been detected in >130 wild boar and in pigs in 3 backyard holdings. We evaluated ASF spread in Poland during these 18 months. Phylogenetic analysis indicated repeated incursions of genetically distinct ASF viruses of genotype II; the number of cases positively correlated wild boar density; and disease spread was very slow. More cases were reported during summer than autumn. The 18-month prevalence of ASF in areas under various animal movement restrictions was 18.6% among wild boar found dead or killed by vehicles and only 0.2% in hunted wild boar. Repeated introductions of the virus into the country, the primary role of wild boar in virus maintenance, and the slow spread of the disease indicate a need for enhanced biosecurity at pig holdings and continuous and intensive surveillance for fast detection of ASF.
Krzysztof
K
Śmietanka
Grzegorz
G
Woźniakowski
Edyta
E
Kozak
Krzysztof
K
Niemczuk
Magdalena
M
Frączyk
Łukasz
Ł
Bocian
Andrzej
A
Kowalczyk
Zygmunt
Z
Pejsak
D000357:African Swine Fever / Q000453:epidemiology* / Q000635:transmission / Q000821:virology; D000358:African Swine Fever Virus / Q000235:genetics*; D000818:Animals; D004279:DNA, Viral / Q000235:genetics; D058872:Epidemics / Q000662:veterinary*; D010802:Phylogeny; D011044:Poland / Q000453:epidemiology; D011156:Population Density; D015995:Prevalence; D012621:Seasons; D034421:Sus scrofa; D013552:Swine
D004279:DNA, Viral
African swine fever; Poland; epidemic; epidemiology; pigs; viruses; wild boar