Sandro
Rolesu, Daniela Aloi, Annalisa Ghironi, Nicolino Oggiano, Annalisa
Oggiano, Giantonella Puggioni, Cristiana Patta, Salvatore Farina &
Salvatore Montinaro |
Summary
The
epidemiological surveillance of African swine fever in wild pig
populations requires the previous collection of numerous samples
of biological materials for virological and serological testing
from each animal that has been killed during the hunting season.
The number of samples needs to demonstrate the absence of the disease
at a prevalence level of 5% (and confidence level of 95%) in the
area subject observed. Since the typology of the territory suitable
for maintaining wild pig populations and the precise location can
be identified, it is possible to pinpoint specific areas within
Sardinia where organised sampling is undertaken. The results from
tests are used to estimate the prevalence of the disease in the
wild pig population in the place of origin. Areas were identified
using the geographic information system technology with support
from maps in the field. The correct localisation of seropositivity
has led to the redefinition of high-risk areas for African swine
fever. Results from the outbreaks and the surveillance of the wild
pig population has confirmed the decreasing role of the wild boar
in maintaining the disease
Keywords African
swine fever, Epidemiology, Geographic information system, Italy,
Land use map, Sardinia, Surveillance, Wild boar.
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