Feline heartworm (Dirofilaria immitis) infection: first case report of serological diagnosis in Brazil, confirmed by molecular assay

Pereira, Bárbara Bianca N.; Bastos, Bethânia Ferreira; Keidel, Lucas; Leles, Daniela; Brener, Beatriz

doi:10.1590/0001-3765201820170063

Cited by 4 publications

(4 citation statements)

References 10 publications

(12 reference statements)

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“…It also causes pulmonary dirofilariasis in humans (35). However, thanks to the increasing awareness of the disease and the development of diagnostic methods, it is an increasingly diagnosed disease in cats (19,30). The presence and prevalence of the disease Blood samples were taken from the vena cephalica antebrachii into anticoagulant (K3-EDTA) and serum separator tubes.…”

Section: Resultsmentioning

confidence: 99%

“…In the direct blood examination, 1-2 drops of the blood sample were placed between a slide and a coverslip. The slides were examined under a microscope, and microfilariae were in cats are reported in many countries in Asia, Africa, Europe, and America (10,13,20,25,30). In studies conducted in different parts of Europe, the prevalence of the disease was 9.4% (3/32) in Greece, 4.8% (32/62) in Italy, 3.5% (5/141) in Portugal, and 24.40-25.20% (61-63/250) in Spain (6,10,25,38).…”

Section: Resultsmentioning

confidence: 99%

“…Consistent with these studies, cat seroprevalence (0.5%) in our study was approximately 20% of the dog prevalence previously detected in the same region (10%). The relatively low adult parasite burden, lack of microfilaremia, the short lifespan of the parasite, and mosquito feeding preferences may also have contributed to the lower prevalence of feline infection (17,30).…”

Section: Resultsmentioning

confidence: 99%

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Occurrence of Dirofilaria immitis in cats from the Aegean region in Turkey

TUNA¹,

AKSOY²,

AY³

2022

Medycyna Weterynaryjna

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Dirofilaria immitis (D. immitis) is a vector-mediated zoonotic parasite that can cause significant cardiopulmonary problems in humans and animals. Although dogs are the main hosts of the parasite, in recent years, its importance has been increasing in cats, especially in endemic areas. This study aims to determine the occurrence of D. immitis infection in cats in the Aegean region, Turkey. The animal material of the study consisted of 200 cats of different breeds and ages (at least 1 year old) and both sexes. The cats were tested for D. immitis and Feline Immunodeficiency Virus (FIV) antibodies and Feline Leukaemia Virus (FeLV) antigen with commercial immuno-chromatographic test kits. In addition, blood samples were examined for microfilariae using a direct blood smear technique and the modified Knott’s test. Out of 200 cats, one (0.5%) cat was seropositive for D. immitis, 15 (7.5%) cats were seropositive for FIV, and one (0.5%) cat was seropositive for FeLV. One cat seropositive for D. immitis was showing signs of active heartworm infection. All samples were found negative for microfilariae by direct blood examination and the modified Knott’s method. This study is the first report of the occurrence of D. immitis in the Aegean Region, with a seroprevalence of 0.5%. Also, it provides evidence that cats in the Aegean region are at risk of becoming infected with D. immitis.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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Occurrence of Dirofilaria immitis in cats from the Aegean region in Turkey

TUNA¹,

AKSOY²,

AY³

2022

Medycyna Weterynaryjna

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“…Several parasitic diseases affect cats (1,2) and the Dirofilariasis is the disease caused by nematode Dirofilaria immitis known as the heartworm because the site of the worms in the lungs arteries (right ventricle) (3), the disease distributed worldwide and affected both feline and canine species (4). Animals can be infected via female mosquito which can be faded to blood of infected animals, L3 can be developed from microfilariae in feline only (5).…”

Section: Introductionmentioning

confidence: 99%

Detection of Dirofilaria immitis antigen in cats in Mosul city

Alobaidii¹,

Zaki²,

Hasan³

2021

IJVS

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This study is the 1 st trial to detect of Dirofeleria imitis in cats in Mosul city, Iraq, Dirofilariasis is the most dangerous nematodes which infect cats, through this study blood samples was collected from 200 cats (different ages, source and rearing management) to investigate from the mature female worms of D. immitis by using direct ELISA, results showed total percentage of infection was 7% (14/200 animals), the relationship between the infection with age of cats was proportional to the age of cats, as the percentage increases with the age of cats, the high prevalence of infection was recorded in cats more than 2 years old 4%, the kittens less than 1 year old showed low prevalence of infection 0.5%, statistically there is a significant differences between the oldest animals with other ages, significant differences between outdoor cats which recorded high prevalence of infection 4%, while Indoor animals recorded low prevalence of infection 3% with D. imitis, 10 of imported cat was infected with D. imitis with high prevalence of infection 5% when compare with native cats 2%, without significant differences between two groups, this study was conducted that the prevalence of D. imitis is high in adult cats, with high prevalence in outdoor rearing and the cats with imported origin.

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Dirofilaria immitis parasite infection in cats: first case reported in the Legal Amazon region, Brazil - case report

Barbosa,

Dourado,

Nogueira

et al. 2023

Arq. Bras. Med. Vet. Zootec.

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A case of infection with Dirofilaria immitis in a cat is reported here with clinical signs of apathy, anorexia, dyspnea, polypnea, slight dehydration and pale mucus membranes. The radiographic examination showed cardiomegaly, lobar arteries dilation of the cranial lobes and tortuosity, enlargement of the caudal lobar arteries. In the right lobe of the lung parenchyma, interstitial pulmonary opacification tending to alveolar opacification was seen. The clinical signs, the movements, and the morphology of the microfilariae in the direct examination of fresh blood, peripheral blood smear and Knott’s modified test supported the diagnosis. We alert to the need for clinicians to consider feline heartworm diseases as a differential diagnosis in endemic areas when cats show respiratory signs.

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Feline heartworm (Dirofilaria immitis) infection: first case report of serological diagnosis in Brazil, confirmed by molecular assay

Cited by 4 publications

References 10 publications

Occurrence of Dirofilaria immitis in cats from the Aegean region in Turkey

Occurrence of Dirofilaria immitis in cats from the Aegean region in Turkey

Detection of Dirofilaria immitis antigen in cats in Mosul city

Dirofilaria immitis parasite infection in cats: first case reported in the Legal Amazon region, Brazil - case report

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