Peste des petits ruminants (PPR) is a viral disease of goats and sheep that occurs in Africa, the Middle East and Asia with a severe impact on livelihoods and livestock trade. Many wild artiodactyls are susceptible to PPR virus (PPRV) infection, and some outbreaks have threatened endangered wild populations. The role of wild species in PPRV epidemiology is unclear, which is a knowledge gap for the Global Strategy for the Control and Eradication of PPR. These studies aimed to investigate PPRV infection in wild artiodactyls in the Greater Serengeti and Amboseli ecosystems of Kenya and Tanzania. Out of 132 animals purposively sampled in 2015–2016, 19.7% were PPRV seropositive by ID Screen PPR competition enzyme-linked immunosorbent assay (cELISA; IDvet, France) from the following species: African buffalo, wildebeest, topi, kongoni, Grant’s gazelle, impala, Thomson’s gazelle, warthog and gerenuk, while waterbuck and lesser kudu were seronegative. In 2018–2019, a cross-sectional survey of randomly selected African buffalo and Grant’s gazelle herds was conducted. The weighted estimate of PPRV seroprevalence was 12.0% out of 191 African buffalo and 1.1% out of 139 Grant’s gazelles. All ocular and nasal swabs and faeces were negative by PPRV real-time reverse transcription-polymerase chain reaction (RT-qPCR). Investigations of a PPR-like disease in sheep and goats confirmed PPRV circulation in the area by rapid detection test and/or RT-qPCR. These results demonstrated serological evidence of PPRV infection in wild artiodactyl species at the wildlife–livestock interface in this ecosystem where PPRV is endemic in domestic small ruminants. Exposure to PPRV could be via spillover from infected small ruminants or from transmission between wild animals, while the relatively low seroprevalence suggests that sustained transmission is unlikely. Further studies of other major wild artiodactyls in this ecosystem are required, such as impala, Thomson’s gazelle and wildebeest.
A 15-year old female Rothschild Giraffe (Giraffa camelopardalis rothschildi) weighing approximately 800kg, at the African Fund for Endangered Wildlife (AFEW), Giraffe Center, Langata, Nairobi, Kenya was presented with dystocia in June 2010. This giraffe named Laura, had a protracted labor and was regularly monitored by sanctuary education rd staff. Dystocia was relieved on the 3 day at this wildlife sanctuary. The giraffe was chemically immobilized by using ® 7mg of Etorphine Hcl (0.98%) (M99 ) (Norvatis South Africa (Pty) Limited) and 50mg of Azaperone(10%) (Kyron Laboratories (Pty) Limited, South Africa) in a Dan-Inject dart (Dan-inject APS, Sellerup Skowej, Denmark). On obstetrical examination of the giraffe, a fetal malposition type of dystocia had occurred. The fetus was positioned at posterior presentation extended posture with tail butting on the maternal pelvis, which is abnormal in giraffes. The fetus was manually extracted by using both alternate and simultaneous limb traction. The dam survived the procedure and later was reported to be in a good reproductive condition but the male fetus was a stillbirth. The fetus had died due to stress of prolonged labour. Relief of dystocia in giraffes is a difficult obstetrical procedure because obstetrical examination and relief requires chemical immobilization plus physical restrain with ropes by trained staff. Anesthesia or immobilization of giraffes remains a challenge because of the giraffe's unique anatomy and physiology. Giraffes are large animals which limits physical control and manipulation at critical times during induction and recovery of anesthesia. Giraffe's long neck if not pinned to the ground will act as a lever causing fatal injuries to self and support staff. Giraffes develop elevated systolic blood pressure; have a small respiratory tidal volume with a large dead space and relatively small cardiac output during anesthesia, which compromises safe levels of anesthesia.
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