Published Date: 2023-03-30 15:51:29 BST
Subject: PRO/AH/EDR> Foot & mouth disease - Libya (02): (MS, AR) cattle, sheep, serotype O, WOAH
Archive Number: 20230330.8709231
FOOT & MOUTH DISEASE - LIBYA (02): (MISRATAH, AL JIFARAH) CATTLE, SHEEP, SEROTYPE O, WOAH
A ProMED-mail post http://www.promedmail.org
ProMED-mail is a program of the International Society for Infectious Diseases http://www.isid.org
Date: Mon 27 Mar 2023
Source: OIE-WAHID (World Animal Health Information Database) 2023 [edited]
https://wahis.woah.org/#/in-review/4990
Libya: foot-and-mouth disease virus (inf. with)
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Summary
Report type: immediate notification
Started: 7 Mar 2023
Confirmed: 22 Mar 2023
Reported: 27 Mar 2023
Reason for notification: recurrence
Last occurrence: 4 Jan 2021
Causal agent: foot-and-mouth disease virus
Serotype: O
Nature of diagnosis: clinical, laboratory
This event pertains to a defined zone within the country.
Outbreak location 1: Jafara, Al Jifarah [Al Jafara]
Started: 7 Mar 2023
Epidemiological unit: farm
Total animals affected:
Species / Susceptible / Cases / Deaths / Killed and disposed of / Slaughtered or killed for commercial use / Vaccinated
Cattle / 30 / 20 / 2 / 0 / 0 / 0
Sheep / 20 / 20 / 0 / 0 / 0 / 0
Outbreak location 2: AlSiwania, Al Jifarah [Al Jafara]
Started: 15 Mar 2023
Epidemiological unit: farm
Total animals affected:
Species / Susceptible / Cases / Deaths / Killed and disposed of / Slaughtered or killed for commercial use / Vaccinated
Cattle / 45 / 2 / 0 / 0 / 0 / 0
Outbreak location 3: AlZarooq, Misratah [Misurata]
Started: 18 Mar 2023
Epidemiological unit: farm
Total animals affected:
Species / Susceptible / Cases / Deaths / Killed and disposed of / Slaughtered or killed for commercial use / Vaccinated
Cattle / 150 / 20 / 10 / 0 / 0 / 0
Sheep / 11 000 / 300 / 60 / 0 / 0 / 0 [see commentary]
Outbreak location 4: AlSaakit, Misratah
Started: 10 Mar 2023
Epidemiological unit: farm
Total animals affected:
Species / Susceptible / Cases / Deaths / Killed and disposed of / Slaughtered or killed for commercial use / Vaccinated
Sheep / 400 / 100 / 3 / 0 / 0 / 0
Outbreak location 5: AlGhayran, Misratah
Started: 13 Mar 2023
Epidemiological unit: farm
Total animals affected:
Species / Susceptible / Cases / Deaths / Killed and disposed of / Slaughtered or killed for commercial use / Vaccinated
Sheep / 100 / 10 / 5 / 0 / 0 / 0
Epidemiology
Source of the outbreak(s) or origin of infection: unknown or inconclusive
Affected population: The outbreaks occurred in 2 sites in western regions, one in the Misurata region and the other in the Al Jafara region. The source is the introduction of new animals. All measures have been applied.
Epidemiological comments: The new outbreaks occurred in different locations: in the Misurata region and in the Al-Jafara region. About 28 blood samples collected by the investigation and rapid response team were positive for the NSP test and gave a positive result in the SP test for serotype O.
Control measures at event level
Control measures applied, domestic: surveillance within the restricted zone, traceability, quarantine, disinfection
Diagnostic test results
Laboratory name and type / Species / Test / Test date / Result
National Central Veterinary Laboratory, Tripoli / cattle, sheep / ELISA for the detection of antibodies against non-structural proteins (NSP ELISA) / 22 Mar 2023 / positive
[The location of the outbreak can be seen on the interactive map at the source URL, https://wahis.woah.org/#/in-review/4990.]
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Communicated by:
ProMED
[In its weekly bulletin dated 19 Mar 2023, Libya's National Centre for Animal Health addressed FMD serotype O affecting 12 cattle farms situated in 6 districts. The report was covered in ProMED post 20230320.8709051. The data follow:
District (locality) / No. farms / date of start
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Tripoli (Oudi Al Rabi) / 1 / 20 Feb 2023
Bayda (Al Jabal al Akhdar) / 1 / 20 Feb 2023
Al Marj (Farzouga) / 1 / 23 Feb 2023
Tobruk / 1 / 1 Mar 2023
Djeffara (Abou Issa) / 5 / 7 Mar 2023
Misratah / 3 / 14 Mar 2023
The disease was, reportedly, suspected also on one sheep farm in Djeffara (Awled Issa). It is not clear if this event's diagnosis has been completed.
The Center's report included the following comment: "The serotype has been identified (O), and samples were sent to the FMDV reference laboratory for topotyping: Istituto Zooprofilattico Sperimentale della Lombardia e dell'Emilia Romagna (IZSLER)."
Outbreak location 3 (AlZarooq, Misratah) in the current (immediate report to WOAH) notification, involved 11 000 sheep, of which 300 were reportedly sick and 60 died. Such high morbidity/mortality rate is typical of FMD affecting juvenile sheep and goats.
Libya is divided into 3 1st-level administrative divisions: Tripolitania in the northwest, Cyrenaica in the east, and Fezzan in the southwest. There are 106 2nd-level administrative divisions, or "districts." All recent outbreaks were located within Tripolitania. An administrative map of Libya is available at https://en.wikipedia.org/wiki/Districts_of_Libya. - Mod.AS]
