Tanzania - 1 new outbreak of anthrax in animals in the Arusha Region (OIE, November 29, 2016)

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Anthrax, Tanzania

Information received on 29/11/2016 from Dr Abdu A. Hayghaimo, Director, Veterinary Services, Ministry of Livestock and Fisheries Development, Dar Es Salaam, Tanzania

Summary Report type Immediate notification Date of start of the event 08/11/2016 Date of confirmation of the event 18/11/2016 Report date 29/11/2016 Date submitted to OIE 29/11/2016 Reason for notification Reoccurrence of a listed disease Date of previous occurrence 06/2016 Manifestation of disease Clinical disease Causal agent Bacillus anthracis Nature of diagnosis Laboratory (basic), Laboratory (advanced) This event pertains to a defined zone within the country

New outbreaks (1)

Outbreak 1 Selela, Manyara, Monduli, ARUSHA Date of start of the outbreak 08/11/2016 Outbreak status Continuing (or date resolved not provided) Epidemiological unit Natural park Affected animals Species Susceptible Cases Deaths Destroyed Slaughtered Cattle 23000 10 10 Goats 15000 26 26 Sheep 11500 3 3 Black wildebeest:Connochaetes gnou(Bovidae) 109 109 0 0 Grant's gazelle:Gazella granti(Bovidae) 21 21 0 0 Affected population Multiple animal species located at livestock-wildlife interface.

Summary of outbreaks Total outbreaks: 1 Total animals affected Species Susceptible Cases Deaths Destroyed Slaughtered Cattle 23000 10 10 Goats 15000 26 26 Sheep 11500 3 3 Black wildebeest:Connochaetes gnou(Bovidae) 109 109 0 0 Grant's gazelle:Gazella granti(Bovidae) 21 21 0 0 Outbreak statistics Species Apparent morbidity rate Apparent mortality rate Apparent case fatality rate Proportion susceptible animals lost* Cattle 0.04% 0.04% 100.00% ** Goats 0.17% 0.17% 100.00% ** Sheep 0.03% 0.03% 100.00% ** Black wildebeest:Connochaetes gnou(Bovidae) ** ** 100.00% ** Grant's gazelle:Gazella granti(Bovidae) ** ** 100.00% ** *Removed from the susceptible population through death, destruction and/or slaughter **Not calculated because of missing information

Epidemiology Source of the outbreak(s) or origin of infection Contact with infected animal(s) at grazing/watering Contact with wild species Epidemiological comments Ingestion of Bacillus spores from the soil is closely linked to the drought that has persisted in the area.

Control measures Measures applied Movement control inside the country Quarantine Surveillance outside containment and/or protection zone Official disposal of carcasses, by-products and waste Surveillance within containment and/or protection zone Vaccination permitted (if a vaccine exists) No treatment of affected animals Measures to be applied No other measures

Diagnostic test results Laboratory name and type Species Test Test date Result Central Veterinary Laboratory, Tanzania (National laboratory) Black wildebeest nested RT-PCR 18/11/2016 Positive

Future Reporting The event is continuing. Weekly follow-up reports will be submitted.

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http://www.oie.int/wahis_2/public/wahid.php/Reviewreport/Review?page_refer=MapFullEventReport&reportid=21717