TSETSE GENETICS: Contributions to Biology, Systematics, and Control of Tsetse Flies

Gooding, R. H.; Krafsur, E. S.

doi:10.1146/annurev.ento.50.071803.130443

Cited by 112 publications

(94 citation statements)

References 76 publications

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“…This may be associated to the presence high density of biting flies that are mechanical vector of trypanosomes (T. vivax) which can be transmitted by tsetse flies and/or other blood sucking insects like Tabanus, Haematopota and Stomoxys spp. [20].…”

Section: Discussionmentioning

confidence: 99%

Bovine Trypanosomosis and Tsetse Fly Vectors in Abobo and Gambela Districts, Southwestern Ethiopia

Kedir¹,

Lelisa²,

Damena³

2016

J Vet Sci Technol

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The study was conducted from October 2015 to November 2015 in Gambela and Abobo districts of Gambela Peoples Regional State, southwestern Ethiopia. It was designed to avail information on prevalence of bovine trypanosomosis and apparent densities of vectors of the trypanosomosis. A parasitological study using buffy coat technique was employed for the determination of prevalence of trypanosomosis while baited mono pyramidal traps were used for the vector survey. A total of 862 cattle randomly selected from the study population were examined for the parasitological study. The result of parasitological study revealed that the overall prevalence of trypanosomosis was found to be 16.59%, 95% CI=14.10-19.08 indicating trypanosomosis is a serious problem in the area. Three Trypanosoma species were identified during the study period: Trypanosoma brucei, T. vivax and T. congolense. Highest trypanosome prevalence (18.67%) was seen in animals with poor condition than that of those with medium (16.76%) and good (14.20%) body condition for the concerned blood parasite but no significant difference was observed (P>0.05). Higher infection rate was occurred in male (18.35%) than female (14.79%) cattle without significant difference (P>0.05). Prevalence was significantly higher in adult animals (17.95%) than younger ones (7.27%) (P>0.05). The study suggested that mean PCV values of parasitaemic (21.13%) cattle was significantly lower than aparasitaemic (22.26%) animals (P<0.05). During entomological survey, four species of tsetse fly: G. tachnoides, G. morsitsns submorsitans, G. pallidipes and G. fuscipes fuscipes and three genera of other biting flies: Tabanus, Haematopota and Stomoxys spp. were caught. The overall apparent density of tsetse flies was 0.75 fly/trap/day. Trypanosomosis and tsetse fly pose great threat to cattle residing in study areas. Thus, appropriate intervention measures need to be taken.

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Section: Discussionmentioning

confidence: 99%

Bovine Trypanosomosis and Tsetse Fly Vectors in Abobo and Gambela Districts, Southwestern Ethiopia

Kedir¹,

Lelisa²,

Damena³

2016

J Vet Sci Technol

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“…African trypanosomiasis infections are caused by the parasitic protozoa Trypanosoma brucei gambiense in West and Central Africa and Trypanosoma brucei rhodesiense in East Africa, and can be transmitted to humans through over 20 species of Glossina tsetse flies [17,18]. We focus on T. b. rhodesiense, which occurs in eastern and southern Africa and is vectored by Glossina morsitans morsitans and Glossina pallidipes, along with other species and subspecies classified under the subgenus Morsitans (Glossina sensu stricto Wiedemann) [18][19][20][21]. Since the Great Epidemic of the 1900s in eastern Africa that infected half a million people [22][23][24], intermittent African trypanosomiasis outbreaks have occurred throughout eastern and southern Africa [25].…”

Section: Introductionmentioning

confidence: 99%

Predicting the effect of climate change on African trypanosomiasis: integrating epidemiology with parasite and vector biology

Moore

Shrestha

Tomlinson

et al. 2011

J. R. Soc. Interface.

110

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Climate warming over the next century is expected to have a large impact on the interactions between pathogens and their animal and human hosts. Vector-borne diseases are particularly sensitive to warming because temperature changes can alter vector development rates, shift their geographical distribution and alter transmission dynamics. For this reason, African trypanosomiasis (sleeping sickness), a vector-borne disease of humans and animals, was recently identified as one of the 12 infectious diseases likely to spread owing to climate change. We combine a variety of direct effects of temperature on vector ecology, vector biology and vector -parasite interactions via a disease transmission model and extrapolate the potential compounding effects of projected warming on the epidemiology of African trypanosomiasis. The model predicts that epidemics can occur when mean temperatures are between 20.78C and 26.18C. Our model does not predict a large-range expansion, but rather a large shift of up to 60 per cent in the geographical extent of the range. The model also predicts that 46-77 million additional people may be at risk of exposure by 2090. Future research could expand our analysis to include other environmental factors that influence tsetse populations and disease transmission such as humidity, as well as changes to human, livestock and wildlife distributions. The modelling approach presented here provides a framework for using the climate-sensitive aspects of vector and pathogen biology to predict changes in disease prevalence and risk owing to climate change.

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“…1955; Gooding and Krafsur, 2005). Copulation in G. morsitans lasts about 45-120 min (Saunders and Dodd, 1972;Wall and Langley, 1993).…”

Section: Introductionmentioning

confidence: 99%

Experimental demonstration of possible cryptic female choice on male tsetse fly genitalia

Briceño

Eberhard

2009

Journal of Insect Physiology

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TSETSE GENETICS: Contributions to Biology, Systematics, and Control of Tsetse Flies

Cited by 112 publications

References 76 publications

Bovine Trypanosomosis and Tsetse Fly Vectors in Abobo and Gambela Districts, Southwestern Ethiopia

Bovine Trypanosomosis and Tsetse Fly Vectors in Abobo and Gambela Districts, Southwestern Ethiopia

Predicting the effect of climate change on African trypanosomiasis: integrating epidemiology with parasite and vector biology

Experimental demonstration of possible cryptic female choice on male tsetse fly genitalia

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