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Background: Aedes and Anopheles mosquitoes are responsible for tremendous global health burdens from their transmission of pathogens causing malaria, lymphatic filariasis, dengue, and yellow fever. Innovative vector control strategies will help to reduce the prevalence of these diseases. Mass rearing of mosquitoes for research and support of these strategies presently depends on meals of vertebrate blood, which is subject to acquisition, handling, and storage issues.

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Overview of spp. and Animal Models in Malaria Research.

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Comparative Medicine Branch, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, Maryland.

Malaria is a parasitic disease caused by protozoan species of the genus and transmitted by female mosquitos of the genus and other Culicidae. Most of the parasites of the genus are highly species specific with more than 200 species described affecting different species of mammals, birds, and reptiles. species strictly affecting humans are , , , and More recently, and other nonhuman primate plasmodia were found to naturally infect humans.

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Introduction: Haemosporidian parasites are prevalent worldwide and can cause economic losses in poultry production. These parasites are arousing interest in Thailand and are found in many avian species. There is insufficient information on the genetic diversity of these alveolates from the largest families - Plasmodidae, Haemoprotidae and Leucocytozoidae - specifically parasitising ducks, turkeys, and geese.

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Laboratory of Malaria and Vector Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Rockville, Maryland, USA.

During blood feeding, mosquitoes inject saliva into the host skin, preventing hemostasis and inflammatory responses. D7 proteins are among the most abundant components of the saliva of blood-feeding arthropods. , the vector of yellow fever and dengue, expresses two D7 long-form salivary proteins: D7L1 and D7L2.

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Article Synopsis
  • Avian malaria and leucocytozoonosis are deadly for chickens, while avian trypanosomiasis is typically harmless; backyard chickens can harbor various pathogens that pose risks to larger poultry operations, therewith impacting the economy.
  • This study sampled 57 backyard chickens in Southern Thailand over a year, utilizing both microscopic methods and nested PCR to identify blood parasites, finding that PCR detection was generally more effective.
  • Researchers discovered multiple new parasite lineages, with a high prevalence of Haemosporida (64.91%) and Leucocytozoon (89.47%), highlighting the need for effective diagnostic methods for managing these infections in backyard chickens.
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