What is Phlebotomus and leishmaniasis?

What is Phlebotomus and leishmaniasis?

Phlebotomus (old world) and Lutzomyia (new world) sandfly bites transmit leishmaniasis to humans in most of the tropical and subtropical world. Trypanosomatidae of various species cause visceral leishmaniasis (L. donovani, infantum and others), cutaneous and mucocutaneous infections (L.

Is Phlebotomus a mosquito?

Phlebotomus is a genus of “sand flies” in the Diptera family Psychodidae. In the past, they have sometimes been considered to belong in a separate family, Phlebotomidae, but this alternative classification has not gained wide acceptance.

Which disease is caused by Phlebotomus?

Visceral leishmaniasis is a deadly parasitic disease that is transmitted via the bite of a female sand fly, Phlebotomus argentipes. The highest burden of this disease is in northern India.

What is the meaning of Phlebotomus?

[ flĭ-bŏt′ə-məs ] n. A genus of very small midges or bloodsucking sand flies that includes various species that are vectors of kala azar, cutaneous leishmaniasis, and phlebotomus fever.

Why kala-azar is called black fever?

Visceral disease, the most devastating and fatal form of leishmaniasis, is classically known as kala-azar or the Indian name for “black fever/disease,” which is a reference to the characteristic darkening of the skin that is seen in patients with this condition.

How do humans get leishmaniasis?

How do people get infected with Leishmania parasites? The main way is through the bite of infected female phlebotomine sand flies. Sand flies become infected by sucking blood from an infected animal or person.

Do sand flies drink blood?

Female sand flies are blood feeders, but the males do not feed on blood. Females must consume a blood meal before they are able to develop eggs. However, both males and females also consume sugar-related nutrients that come from plant nectar or honeydew.

What attracts sand flies to humans?

Sandflies are more active at dawn and dusk, and on warm cloudy days so these are times to take extra care. They are also attracted to darker clothing, so wear lighter colours and try to cover up as much as possible. Sandflies are also more likely to be found within around ten metres of running water.

What are the symptoms of leishmaniasis in humans?

Common signs and symptoms include:

  • weight loss.
  • weakness.
  • fever that lasts for weeks or months.
  • enlarged spleen.
  • enlarged liver.
  • decreased production of blood cells.
  • bleeding.
  • other infections.

What is the medical role of Phlebotomus?

Mediterranean and in southern Asia, Phlebotomus transmits the pappataci fever virus; and in parts of South America, Africa, and Asia it carries the protozoan parasites causing kala azar, Oriental sore, espundia, and bartonellosis.

Why are sand flies called sand flies?

Worth writing home about. The first instance of the word sandfly (rather than blackfly) for the New Zealand species is in the journal of James Cook. He came across the insects at Fiordland’s Dusky Sound, possibly at a sandy beach, in May 1773.

Which organ is affected by kala-azar?

Visceral leishmaniasis (VL), also known as kala-azar is fatal if left untreated in over 95% of cases. It is characterized by irregular bouts of fever, weight loss, enlargement of the spleen and liver, and anaemia. Most cases occur in Brazil, East Africa and in India.

How is kala-azar transmitted?

Kala-azar. The leishmaniases are a group of diseases caused by protozoan parasites from more than 20 Leishmania species. These parasites are transmitted to humans by the bite of an infected female phlebotomine sandfly, a tiny 2-3 mm long insect vector.

Can you survive leishmaniasis?

Cutaneous leishmaniasis Cutaneous ulcers will often heal without treatment. However, treatment can speed healing, reduce scarring, and decrease risk of further disease.

Can Leishmania be cured?

Leishmaniasis is a treatable and curable disease, which requires an immunocompetent system because medicines will not get rid of the parasite from the body, thus the risk of relapse if immunosuppression occurs. All patients diagnosed as with visceral leishmaniasis require prompt and complete treatment.

How do I stop sand flies biting me?

Avoid localities, especially at dawn and dusk. These are known to be frequented with biting midges. Avoid watering your garden around sunset as midges are attracted to shady humid areas. Wear protective clothing in the early morning, late afternoon and evenings.

Do sand flies pee on you?

They don’t pee or urinate on you, thankfully. They do inject a salivary secretion that produces a skin reaction of varying intensity, depending on an individual’s reaction. It is an allergic reaction from protein in the Sand Fly saliva.

How do I keep sand flies away?

Vinegar: Vinegar is a handy cleaning ingredient to have around the camper, and it’s also a great agent against bugs like sandflies. Sprinkle a little on your clothes, making sure to avoid sensitive areas like your eyes. Essential Oils: Eucalyptus, lavender and tea tree oils can all help.

What is the best repellent for sand flies?

Deet: If you’re looking for the most powerful bug repellant available, go with a DEET-based spray. While it’s potent and far from natural, DEET is considered an effective bug repellant for sand flies. Further, DEET has been studied for decades and the Environmental Protection Agency (EPA) says it poses no health risks.

Can sand flies cause disease?

Leishmaniasis is a parasitic disease that is found in parts of the tropics, subtropics, and southern Europe. Leishmaniasis is caused by infection with Leishmania parasites, which are spread by the bite of infected sand flies. There are several different forms of leishmaniasis in people.

What is a Phlebotomus?

Phlebotomus is a genus of ” sand flies ” in the Diptera family Psychodidae. In the past, they have sometimes been considered to belong in a separate family, Phlebotomidae, but this alternative classification has not gained wide acceptance.

Is Phlebotomus sergentithe vector of Leishmania tropica?

Newly eclosed male sand flies were identified based on their un-rotated genitalia. Cumulative results show that Phlebotomus sergentithe vector of Leishmania tropicarests and breeds inside caves that are also home to rock hyraxes (the reservoir hosts of L. tropica) and several rodent species.

What is the Phlebotomus vector of sandfly fever?

Phlebotomus species are also vectors for bartonellosis, verruga peruana, and pappataci fever, an arboviral disease caused by sandfly fever viruses such as the Naples and Sicilian strains of the genus Phlebovirus (family Bunyaviridae), which also includes the closely related Toscana virus.

What do Phlebotomus eat?

In Egypt, two species of medical importance are Phlebotomus papatasii and P. langerni. These flies are short-lived. Females are bloodsuckers at night; males feed on plant juices. Adults are poor fliers, they usually hop for short distances.