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In particular, attention was paid to action taken by the CA to control CSF outbreaks in feral pigs. Although progress has been made in the eradication of CSF in wild boars, a certain level of uncertainty remains as to the likelihood of virus circulation within the wild boar population in Hungary. That cannot be definitively excluded at this stage due to the relevance of some epidemiological indicators, such as serological positiveness in a few young animals of ages far beyond the expected threshold of maternal immunity, whose origin cannot be unequivocally ascertained. A reasonable period of time, including at least the current hunting year, will be needed for both the adequate age-targeting of sero-surveillance in the young populations of wild boars and the ongoing virological investigation efforts, to produce the robust epidemiological data that should allow the CA to further elucidate whether the CSF virus is circulating or not in the wild boar population in Hungary.
Should an outbreak occur in domestic pigs, the data available would not allow all holdings and
animals within the infected zone to be identified quickly. The fact that movement of animals is
sometimes not documented and tracing of contact animals may be difficult if not impossible would hamper the application of control measures.
http://ec.europa.eu/food/fvo/act_getPDF.cfm?PDF_ID=8681
