Methods Of Vector Control Quiz: Trivia!

When treating scabies, it is advisable to treat all those who have close contact with the patient because scabies is highly contagious and can easily spread from one person to another through close contact. Even if someone does not have any symptoms, they may still be carrying the mites that cause scabies and can pass it on to others. Treating everyone who has close contact with the patient helps to prevent the spread of scabies and ensures that everyone is effectively treated, reducing the risk of reinfestation.

False - this is only true for eradication. In elimination, measures are still needed to ensure that disease transmission does not re-occur.

This is true as they are hosts to hard ticks. Soft ticks are found indoors and are controlled by the regular sweeping of floors, IRS, raising beds, and better quality housing.

Control is difficult because of extensive larval habitats. Insect repellants give some protection.

Burning of mite islands is a method used to control the population of leptotrombidium, which are mites that can transmit diseases to humans. By burning the islands where these mites reside, their habitat is destroyed, leading to a decrease in their population. This helps in controlling the spread of diseases that these mites may carry. Therefore, the statement is true.

This has helped reduced leishmania transmission in many areas with both malaria and leishmania. Phlebotomus papatasi and Lutzomyia longipalpis are both endophiles of note.

This is difficult because the larval habitats are so extensive. Spraying and fogging has been done in some areas with limited effect. Deet gives limited personal protection. Bed nets without insecticides are unlikely to stop midges biting.

They are mostly focused on adults.

All others are viable but not as quick as fogging.

Control is aimed at adults because the larvae is retained by the female for most of its life and the pupae are buried in the soil. It doesn't lay eggs - it gives birth to a live larvae.

Viable control methods are Sterile insect technique and targets and traps impregnated with pyrethroids. There is no known problem with tsetse resistance to insecticides, so these will likely form the mainstay of control in the future, with drug therapy for those infected.

Regular vacuuming, washing duvets, and airing rooms is a good control method for Dermatophagoides. Dermatophagoides refers to dust mites, which are tiny insects that commonly live in household dust, bedding, and upholstery. These mites can cause allergies and respiratory problems in some individuals. By vacuuming regularly, washing duvets, and airing rooms, it helps to reduce the number of dust mites and their allergens in the environment, providing a healthier living space for individuals who are sensitive to dust mites.

They have had a good local effect in some areas.

Although DDT has severe environmental impacts, the WHO endorsed it in 2006 for use in IRS. Some areas have resistance to it however, and it is banned in some countries.

The target species was T.infestans. Chile, Uraguay and Brazil are now declared free.

Temephos is a larvicide introduced to running water environments to kill blackfly larvae. This is the main option for blackfly control.

They are good in areas in which there is not resistance to pyrethroids.

Ironing clothes can prevent infection with Pediculis humanis corporis (body lice) and Cordylobia anthropophaga (Tumbu/Mango fly). Ironing clothes at high temperatures can kill the eggs, larvae, and adult insects present on the fabric, reducing the risk of infestation and subsequent infection. However, ironing clothes may not be effective in preventing infection with soft ticks or fleas, as these parasites are usually found in the environment rather than on clothing.

Head lice could be controlled this way, although many wouldn't want to do this.

Body lice are found on clothes, so washing clothes at a high temperature or treating them with insecticidal lotions (e.g. 1% permethrin, 5% carbaryl) kills the lice. Shaving doesn't help.

Treatment of pubic lice can be with shaving, but insecticidal lotions are now commonly used.

Permethrin cream is often the first choice, but care must be taken when given to pregnant women or young children.

Malathion lotion must also be given cautiously to children aged 6 and under.

Benzyl benzoate is the traditional treatment and is painted from the neck down. It is still used if the other creams are too costly or unavailable.

Anti-histamine may help with the itchiness of scabies and could be prescribed with cream treatment, as the itching will continue for some while after the mites have been killed.