Transovarial Transmission of Babesia ovis by Rhipicephalus sanguineus and Hyalomma marginatum
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Abstract
Background: Rhipicephalus sanguineus and Hyalomma marginatum are the most common species in sheep herds in Northeast of Iran. There is preliminary evidence that these species may be the vectors of Babesia ovis in Iran. We carried out two experiments in Mashhad area, Khorasan Razavi Province to determine whether B. ovis could be transovarially transmitted by R. sanguineus and H. marginatum.
Methods: In experiment 1, adults of laboratory reared H. marginatum and R.sanguineus were infected with B. ovis isolated from naturally infected sheep in Mashhad area by feeding the ticks on the sheep inoculated intravenously by infected blood samples. The inoculated sheep showed clinical signs with parasitaemia while the adult ticks were engorging on them. The engorged females were collected and kept at 28°C and 85% relative humidity in incubator. Then, larval, nymphal and adult stages derived from engorged females were used to infest the clean sheep. In experiment 2, two splenectomized sheep were infested only with the same adult ticks of two species.
Results: Examination of smears and PCR of blood samples to detect of B. ovis in infested sheep in two experiments were negative.
Conclusion: It seems that R. sanguineus and H. marginatum can not transovarially transmit B. ovis in sheep.
Friedhoff KT. Tick-borne diseases of sheep and goats caused by Babesia, Theileria or Anaplasma spp. Parassitologia. 1997; 39: 99-109.
Uilenberg G. General review of tick-borne diseases of sheep and goats world-wide. Parassitologia. 1997; 39: 161-195.
Friedhoff KT. Transmission of Babesia. In: Ristic M, Editor. Babesiosis of domestic animal and man, Florida: CRC press; 1988. p. 23-45.
Anwar M. Geographical distribution of protozoan blood parasites of domestic animal in Iran. Bull Off Inter Epizoot. 1974; 81: 793-798.
Rak H. Tick-borne diseases and their vectors in Iran. In Wilde, JKH. Editor.Tickborne diseases and their vectors. Edinburgh: University Press; 1978. P.163-166.
Hashemi-Fesharaki R. Tick-borne disease of sheep and goats and their related vectors in Iran. Parassitologia. 1997; 39: 115-117.
Rafyi A, Niak A, Rak H. Bref compte Rendu sur les tiques, les maladis transmises par les tiques ET le controle de ces parasite en Iran. Bull Off Inter Epizoot. 1974; 81: 1-7.
Mazlum Z. Tick species of Iran, its distribution, host and seasonal activity. J Vet Fac Uni The. 2007; 72: 1-28. (In Persian, with English abstract).
Rahbari S, Nabian S, Shayan P. Primary report on distribution of tick fauna in Iran. Parasitol Research. 2007; 101 (Suppl. 2): 175-177.
Razmi GR, Naghibi A, Aslani MR, Fathivand M, Dastjerdi K. An epidemiIranian ological study on ovine babesiosis in the Mashhad suburb area, province of Khorasan, Iran. Vet Parasitol. 2002; 2:109-15.
Razmi GR, Naghibi A, Aslani MR, Dastjerdi K, Hossieni H. An epidemiological study on Babesia infection in small ruminants in Mashhad suburb, Khorasan Province, Iran. Small Ruminant. Research 2003; 50: 39–44.
Shayan P, Hooshmand E, Rahbari S, Nabian S. Determination of Rhipicephalus spp. as vectors for Babesia ovis in Iran. Parasitol Res. 2003; 101:1029–1033.
Apanaskevich DA. Host-parasite relationships of the genus Hyalomma Koch, 1844 (Acari: Ixodidae) and their connection with microevolutionary process Parazitologiia. 2004; 38:515-523.
Kampen H, Poltz W, Hartelt K, Wölfel R , Faulde M. Detection of a questing Hyalomma marginatum marginatum adult female (Acari, Ixodidae) in southern Germany. Exp Appl Acarol. 2007; 43:227–231.
Torres FD. The brown dog tick, Rhipicephalus sanguineus (Latreille,m 1806) (Acari: Ixodidae): from taxonomy to control. Vet Parasitol. 2008; 152: 173-185.
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| Issue | Vol 5 No 3 (2010) | |
| Section | Articles | |
| Keywords | ||
| Experimental transmission Babesia ovis Rhipicephalus sanguineus Hyalomma marginatum Sheep | ||
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