OS20 Online 8 December Poster

1. 1EuFMD | Open Session special edition | #OS20se
Gisella Stephanie de Oliveira Dias da Silva
Department of Preventive Veterinary Medicine and Animal Health /
School of Veterinary Medicine and Animal Science of the University of
São Paulo / Brazil.
COVERAGE OF SLAUGHTERHOUSE SURVEILLANCE FOR
BOVINE TUBERCULOSIS THROUGH NETWORK ANALYSIS OF
CATTLE MOVEMENTS IN BRAZIL.

2. 2EuFMD | Open Session special edition | #OS20se
• The outreach of the slaughterhouse-based surveillance system could
potentially reach indirect trade partners of premises that send animals
directly to slaughterhouses.
• This work aims to estimate and characterize the cattle herd that could be
monitored directly and indirectly by the inspection routine and identify
premises and regions that are not being covered by the slaughterhouse
surveillance.
Main Ideas

3. 3
Main Ideas
• An animal movement contact network was reconstructed from a Brazilian
state’s cattle movement database.
• The number of premises and animals under direct and indirect
slaughterhouse surveillance was identified.

4. 4
Outcome
• Slaughterhouses were connected up to 5 indirect neighbors in the trade
network
• In total, 48.5% of the state's premises and 35% of the state’s cattle were
not covered by the slaughterhouse-based surveillance system.
15.59%
35.85%
48.54%
0.00% 10.00% 20.00% 30.00% 40.00% 50.00% 60.00%
Premises directly covered
Premises Indirectly covered
Not covered premises

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EuFMD / Open Session