Question

when would you suspect that a person has dengue ? What measure can be taken to prevent the spread of this diseases ?
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Answer 1

Answer:

Prevention

No vaccine can protect against dengue fever. Only avoiding mosquito bites can prevent it.

Anyone who lives in or travels to an at-risk area can use a number of ways to avoid being bitten.

1. If you are spending time in a tropical region, use mosquito nets that are treated with insecticide.
2. Clothing: Reduce the amount of skin exposed by wearing long pants, long-sleeved shirts, and socks, tucking pant legs into shoes or socks, and wearing a hat.
3. Mosquito repellents: Use a repellent with at least 10 percent concentration of diethyltoluamide (DEET), or a higher concentration for longer lengths of exposure. Avoid using DEET on young children.
4. Mosquito traps and nets: Nets treated with insecticide are more effective, otherwise the mosquito can bite through the net if the person is standing next to it. The insecticide will kill mosquitoes and other insects, and it will repel insects from entering the room.
5. Door and window screens: Structural barriers, such as screens or netting, can keep mosquitos out.
6. Avoid scents: Heavily scented soaps and perfumes may attract mosquitos.
7. Camping gear: Treat clothes, shoes, and camping gear with permethrin, or purchase clothes that have been pretreated.
8. Timing: Try to avoid being outside at dawn, dusk, and early evening.
9. Stagnant water: The Aedes mosquito breeds in clean, stagnant water. Checking for and removing stagnant water can help reduce the risk.

To reduce the risk of mosquitoes breeding in stagnant water:

• turn buckets and watering cans over and store them under shelter so that water cannot accumulate
• remove excess water from plant pot plates
• scrub containers to remove mosquito eggs
• loosen soil from potted plants, to prevent puddles forming on the surface
• make sure scupper drains are not blocked and do not place potted plants and other objects over them
• use non-perforated gully traps, install anti-mosquito valves, and cover any traps that are rarely used
• do not place receptacles under an air-conditioning unit
• change the water in flower vases every second day and scrub and rinse the inside of the vase
• prevent leaves from blocking anything that may result in the accumulation of puddles or stagnant water
• When camping or picnicking, choose an area that is away from still water.