Review/Oorsig Volume 23, Issue 02 - Page 12

Oorsig/Review T. pyogenes is a different matter altogether. There is only the OBP vaccine, which is a helpful vaccine, but is one of the less effective vaccines. It is also time-consuming and difficult to give, as the initial vaccination consists of 3 injections, 10 days apart, and thereafter, every 6 months. Hygiene and effective treatment of all abscesses definitely have to be done at the same time. Keeping the flock [or herd] as young as possible is also helpful, as that cuts out the older animals that are more likely to be carriers. The third common cause of abscesses in sheep, is Actinobacillus lignieresii, which usually causes abscesses of the head and neck. There is no vaccine for A. lignieresii. Culture of a few different abscesses from a few sheep in the flock is the only way to distinguish between the three. DM – 11 Feb 2018 During my Time with “Pfizer” I contacted OBP in connection with their Corynebacterium vaccine and said that by not keeping up with “name changes”, they were creating confusion – the answer I got was that they had a storage room full of package inserts which had to be used up before they could rectify the label. Well, that was around 2005 – so that must have been one hell of a storage room! The name changed in the early 1990’s. You can see all the “recent” changes to the different bacteria in the front section of the IDR under “Revised nomenclature”… I wonder how many of you actually read all the interesting and helpful information in the IDR? JvN – 11 Feb 2018 What's the IDR ? In most cases it is much better to ask a question on this forum and get well informed answers from folk like Maryke , Moritz and many others . DR – 11 Feb 2018 IVS = Index for Veterinary Specialities. IDR = IVS Desk Reference MvV – 11 Feb 2018 Colleagues, in my opinion the IVS Desk Reference (IDR) (referred to above) is a valuable asset in your armamentarium of resources to practice evidence-based medicine. Chris Carrington is the editor and an updated version is published every two years. You can enquire about purchasing it at the IDR Subscription Dept. at 011 280 5856. Tick-borne Protozoan and Rickettsial diseases of sheep and goats in South Africa Anaplasma ovis has been known and identified here for decades, but because it is seldom recognised as a clinical disease, it often goes undiagnosed and thus also unreported. It sometimes causes mild icterus in lambs and this is only picked up at slaughter in otherwise perfect carcasses. May be related to stress prior to slaughter? DO – 22 November 2017 Dear Ruralvets. The new research study below shows that there is Anaplasma ovis infection in South Africa – I was not aware of that. Parasitology International. 2017 Nov 15. Molecular analysis of tick-borne protozoan and rickettsial pathogens in small ruminants from two South African provinces. Ringo AE1, Moumouni PFA1, Taioe M2, Jirapattharasate C3, Liu M1, Wang G1, Gao Y1, Guo H1, Lee SH1, Zheng W4, Efstratiou A1, Li J1, Inoue N1, Suzuki H1, Thekisoe O2, Xuan X5. Abstract Tick-borne protozoan and rickettsial diseases are a major threat to livestock in tropical and sub-tropical regions of Africa. In this study 12 we investigated the presence and distribution of Theileria spp., Babesia ovis, Anaplasma ovis, Anaplasma phagocytophilum, Ehrlichia ruminantium and SFG Rickettsia in sheep and goats from Free State and KwaZulu-Natal provinces (South Africa). A total of 91 blood samples were screened in this study, 61 from goats and 30 from sheep. PCR assay was conducted using primers based on Theileria spp. 18S rRNA, Babesia ovis (BoSSU rRNA), Anaplasma ovis (AoMSP4), Anaplasma phagocytophilum epank1, Ehrlichia ruminantium pCS20 and SFG Rickettsia OmpA. Overall infection rates of Theileria spp., Anaplasma ovis and Ehrlichia ruminantium were 18 (19.8%), 33 (36.3%) and 13 (14.3%), respectively. The co- infection of two pathogens were detected in 17/91