Preventing tick exposure in vets and farmers
05 Sep 2020
Johnson, N., Phipps, P., Godbole, G., Hansford, K., Johnston, C., White, M., Medlock, J.
Readers of Vet Record may have seen news reports of a rare case of human babesiosis in a resident from Devon (VR, 22/29 August 2020, vol 187, p 135). Babesiosis is indeed rare in people, although a case in Scotland has previously been documented
In the recent case, intraerythrocytic piriform (merozoite) and ring form (trophozoite) bodies were observed microscopically on Giemsa-stained thin blood smears prepared from EDTA blood from the patient. This indicated infection with Babesia, although the precise species was unclear.
As a result, the APHA was contacted to establish what the infecting species was. Morphologically, the piroplasms were suggestive of Babesia divergens and this was confirmed by detection of B divergens genomic DNA in a blood sample supplied to the APHA. B divergens is the cause of haemolytic anaemia in...