Identification of Avian Malaria (PlasmodiumSp.) and Canine Heartworm (Dirofilaria immitis) in the Mosquitoes of Tennessee

2014 ◽  
Vol 100 (4) ◽  
pp. 455-462 ◽  
Author(s):  
Rebecca T. Trout Fryxell ◽  
Taylor Thompson Lewis ◽  
Hannah Peace ◽  
Brian B. M. Hendricks ◽  
David Paulsen
Keyword(s):  
Dirofilaria Immitis ◽  
Avian Malaria ◽  
Canine Heartworm

Ultrastructure of neuromuscular relationships in the canine heartworm (dirofilaria immitis)

1986 ◽  
Vol 44 ◽  
pp. 278-279
Author(s):  
W. L. Steffens ◽  
Nancy B. Roberts ◽  
J. M. Bowen
Keyword(s):  
Dirofilaria Immitis ◽  
Domestic Dogs ◽  
Structural Description ◽  
Pharmacological Effects ◽  
Free Living ◽  
Canine Heartworm ◽  
The World ◽  
Synaptic Region ◽  
Muscle Innervation ◽  
Insight Into

The canine heartworm is a common and serious nematode parasite of domestic dogs in many parts of the world. Although nematode neuroanatomy is fairly well documented, the emphasis has been on sensory anatomy and primarily in free-living soil species and ascarids. Lee and Miller reported on the muscular anatomy in the heartworm, but provided little insight into the peripheral nervous system or myoneural relationships. The classical fine-structural description of nematode muscle innervation is Rosenbluth's earlier work in Ascaris. Since the pharmacological effects of some nematacides currently being developed are neuromuscular in nature, a better understanding of heartworm myoneural anatomy, particularly in reference to the synaptic region is warranted.

Is canine heartworm ( Dirofilaria immitis ) endemic to South Australia?

2019 ◽  
Vol 97 (6) ◽  
pp. 191-196 ◽  
Author(s):  
EJ Dearsley ◽  
RM O’Handley ◽  
CGB Caraguel
Keyword(s):  
Dirofilaria Immitis ◽  
South Australia ◽  
Canine Heartworm

Effects of canine heartworm (Dirofilaria immitis) on body condition and activity of free-ranging coyotes (Canis latrans)

2000 ◽  
Vol 78 (6) ◽  
pp. 1042-1051 ◽  
Author(s):  
Benjamin N Sacks ◽  
Karen M Blejwas
Keyword(s):  
Body Mass ◽  
Body Condition ◽  
Dirofilaria Immitis ◽  
Canis Latrans ◽  
Infected Group ◽  
Control Group ◽  
Canine Heartworm ◽  
Average Body Mass ◽  
Free Ranging ◽  
Average Body

We used radiotelemetry to study relationships among canine heartworm (Dirofilaria immitis) infection, body condition, and activity of free-ranging coyotes (Canis latrans). Average body mass at death was lower for 17 coyotes in a high-intensity infected group (mean = 33.6 heartworms) than for 18 coyotes in a control group (mean = 3.6 heartworms; p < 0.01). Coyotes in the infected group lost body mass at an average rate of 20% per year relative to the control group (p < 0.01). Bone marrow fat was negatively correlated with heartworm burden (R2 = 0.27; p < 0.01). Average body mass of coyotes at initial capture (i.e., potentially before infection) did not differ between infected and control groups (p = 0.90; 1–β = 0.70). Activity was negatively correlated with heartworm burden during the last 2 months of life (R2 = 0.30; p < 0.01), but no correlation was found 2–4 months before death. Activity of the infected group (n = 13) declined over time (p = 0.01), whereas no difference in activity was observed in the control group (n = 13; p = 0.50). Our findings indicate that heartworm infection reduced body condition and activity of coyotes but that nutritional status did not significantly affect susceptibility to infection.

Seroprevalence of canine heartworm (Dirofilaria immitis) infection in Albania

2010 ◽  
Vol 107 (2) ◽  
pp. 481-485 ◽  
Author(s):  
Dhimiter Rapti ◽  
Steffen Rehbein
Keyword(s):  
Dirofilaria Immitis ◽  
Canine Heartworm

Incidence of canine heartworm (Dirofilaria immitis) in Malaysia

1976 ◽  
Vol 98 (4) ◽  
pp. 68-69 ◽  
Author(s):  
A. Retnasabapathy ◽  
K. San
Keyword(s):  
Dirofilaria Immitis ◽  
Canine Heartworm

scholarly journals Pig-hunting dogs are an at-risk population for canine heartworm (Dirofilaria immitis) infection in eastern Australia

2020 ◽  
Vol 13 (1) ◽  
Author(s):  
Bronwyn Orr ◽  
Gemma Ma ◽  
Wei Ling Koh ◽  
Richard Malik ◽  
Jacqui M. Norris ◽  
...  
Keyword(s):  
At Risk ◽  
Dirofilaria Immitis ◽  
Risk Population ◽  
Canine Heartworm ◽  
Hunting Dogs ◽  
Eastern Australia

Seroprevalence of canine heartworm disease (Dirofilaria immitis) on Tenerife Island: an epidemiological update

2006 ◽  
Vol 100 (1) ◽  
pp. 103-105 ◽  
Author(s):  
J. A. Montoya ◽  
M. Morales ◽  
M. C. Juste ◽  
A. Bañares ◽  
F. Simon ◽  
...  
Keyword(s):  
Dirofilaria Immitis ◽  
Canine Heartworm ◽  
Canine Heartworm Disease ◽  
Heartworm Disease ◽  
Tenerife Island

Dirofilaria immitis exposure status in client-owned cats with or without lower airway/lung-associated signs: case-control study in a canine heartworm-endemic area

2016 ◽  
Vol 19 (2) ◽  
pp. 153-157 ◽  
Author(s):  
Chung-Hui Lin ◽  
Pei-Ying Lo ◽  
Han-Ju Tsai ◽  
Lih-Chiann Wang ◽  
Bor-Song Liaw ◽  
...  
Keyword(s):  
Dirofilaria Immitis ◽  
Endemic Area ◽  
Case Control Study ◽  
Clinical Signs ◽  
Case Control ◽  
Lower Airway ◽  
Canine Heartworm ◽  
Stray Cats ◽  
Significant Difference ◽  
Control Study

Objectives Heartworm-associated respiratory disease (HARD) is a recently recognised pathological manifestation in cats caused by Dirofilaria immitis exposure. This study aimed to estimate the percentage of cats at risk of developing HARD in a heartworm-endemic area (Taipei, Taiwan), and to test the correlation of heartworm exposure and the presence of lower airway/lung clinical signs (LA/L signs). Methods This was a prospective case-control study. The study design called for the enrolment of at least 80 cats with LA/L signs and at least 80 cats without such clinical signs in a 1 year period. The D immitis antibody seroprevalence of the two cohorts was compared. Results From February 2014 to January 2015, 187 client-owned cats were prospectively enrolled: 83 clinical cases with LA/L signs and 104 cats without such signs. Antibody seropositivity was approximately twice as frequent in cats with LA/L signs (13.3%) than in cats without signs (7.8%) (odds ratio [OR] 1.814); nevertheless, no statistically significant difference between the two cohorts ( P = 0.22) was found. We used 41 frozen samples from free-roaming cats to examine the possibility of different exposure rates to mosquito bites between client-owned cats and stray cats, finding the seroprevalence to be 7.5% in free-roaming cats – a result not statistically different to that in client-owned cats ( P = 0.60). Outdoor access was a significant risk factor for heartworm exposure in client-owned cats (OR 3.748; P = 0.03); however, living entirely indoors did not provide complete protection from exposure/infection. Conclusions and relevance Our results did not show statistically significant differences in antibody seroprevalence between cats with and without LA/L signs. LA/L signs were not always present under conditions of natural exposure. However, exposure to D immitis is not rare among client-owned cats, suggesting that heartworm prophylactics should be a part of routine care in all cats living in areas endemic for canine heartworm.

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