Sentences with phrase «immitis microfilariae»

Laboratory tests for Dirofilaria repens and Dirofilaria immitis microfilariae were carried out using a modified Knott's test on 1 milliliter whole blood sample collected in EDTA tube.

Comparatively, the cephalic end of D. immitis microfilariae is cone - shaped and dark (Fig. 1,2) and their tail is very thin (Fig. 4).

As a matter of fact, none of seven dogs from a non-endemic area in Central Italy (Fermo, Marche), with D. immitis microfilariae (fig. 1,2,4) in the blood and patent disease, proved seropositive with two antigen tests (PetChek and Wittness).

Detection of D. immitis microfilariae in a seronegative dog, can occur when only a single gravid female lives in the pulmonary arteries of the host.

In a recent study from another non-endemic area (Munchen, Germany), among 72 imported or travelling dogs with D. immitis microfilariae in the blood, and examined between 1993 - 96, 27 (37.5 %) resulted sero - negative with the ELISA test (Zahler et al., 1997), apparently confirming the results here reported.

It also provides a protective shield against ticks, lice, and even mosquitoes that may carry the dread Dirofilaria immitis microfilariae.

1) Dirofilaria immitis microfilaria (x10, filtration test) in the blood of a seronegative symptomatic dog from the non-endemic area of Fermo (Marche, Italy)

4) Detail of the caudal end of a Dirofilaria immitis microfilaria (x40, filtration test), from a seronegative and symptomatic dog living in non-endemic area (Fermo, Marche, Italy).

2) Dirofilaria immitis microfilaria (x4) in a fresh blood smear from a seronegative dog, living in non-endemic area (Fermo, Italy).

Not exact matches

Revolution is not effective against adult D. immitis and, while the number of circulating microfilariae may decrease following treatment, Revolution is not effective for microfilariae clearance.

McCall JW, Arther R, Davis W, Settje T. Safety and efficacy of 10 % imidacloprid + 2.5 % moxidectin for the treatment of Dirofilaria immitis circulating microfilariae in experimentally infected dogs.

When fixed using 2 per cent formalin, microfilariae of D. immitis are 262 - 338 mm in length and 4 - 6,2 mm in width (Schrey, 1996), distinguishing them from the non-pathogenic filarial larvae of A. reconditum which are shorter and thinner (241 - 287 mm x 3,8 - 5 mm).

Exclusion of D. immitis, the causative agent of heartworm disease, through a negative antibodies test was an important confirmation that microfilariae observed were only due to D. repens.