General information, not a diagnosis Method and limitations

10Vector prevention

Mosquitoes: choosing and combining protections

No single measure protects in all situations. The level of prevention depends on the location, the hours of activity of the species present, the housing, the duration of exposure and the individual situation.

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Traveller applying a repellent on his forearm before outside activity
AI-generated illustration, not evidence of a health event. Clothing, repellent, housing and reduction of larval lodgings complement each other.

AnswerThe essential first

In practice

The short answer

Wear suitable coverings, apply an authorized repellent to the skin, respecting the label, protect openings or sleeping and regularly remove small containers of standing water around the place of life. In malaria or active transmission areas, ask for medical advice before departure.

See steps ▼
4 levers

to be combined

Clothing, repellent, shelter barrier and suppression of stagnant water.

Label

dose and renewal

The duration of protection depends on the product, the concentration and the conditions.

Return

report fever

Quickly indicate the places and dates of stay to a professional.

01Understanding the situation

Adapt protection to exposure

Mosquitoes don't all sting at the same time. Maintain protection consistent with local recommendations rather than relying on a single rule.

01

Before outside activity

Choose covering clothing and apply the product only to areas discovered.

02

After bathing or sweating

Check the label to find out if and when to renew the application.

03

In housing

Check mosquito nets, openings and air conditioning, and use a bednet if the context recommends it.

04

Around the home

Empty, cover or store containers that retain water, including saucers, buckets and games.

05

Before a trip

Check out destination alerts and recommendations on malaria, vaccines and pregnancy.

02Step by step

Apply a repellent without forgetting the other barriers

The product label and the age of the person determine the use. Proper protection avoids sensitive areas and limits unnecessary applications.

  1. Read label

    Check active substance, minimum age, contraindications, announced duration and maximum number of applications.

  2. Cover first

    Prefer long sleeves, pants, closed shoes and fabrics suitable for heat.

  3. Apply to the skin discovered

    Spread a regular layer without spraying directly to the face.

  4. Protect your face with your hands

    Place the product in the hands of an adult and apply it avoiding eyes, mouth and damaged skin.

  5. Respect the order with the solar

    Apply the sun protection first, let it dry, and then use the repellent according to the package leaflet.

  6. Renew only if necessary

    Follow the indicated duration and take into account swimming, sweating and friction.

  7. Wash back

    Clean the treated skin when it no longer needs protection and wash the clothes according to their instructions.

03Decision points

Strengthening according to context

The context determines the right measure. Use these markers to choose the next action and when to ask for help.

Current exposure

Clothing and authorized repellent may be sufficient, supplemented by the removal of stagnant water.

Night or accommodation with little protection

Add a suitable mosquito net, check its integrity and avoid it resting on the skin.

Transmission area

Follow the official destination recommendation; malaria may also require a prescribed medicine.

In practiceObserve and understand

Organise protection at three levels

Reducing bites combines skin protection, measures in the building and reducing standing water around the home. Choose a product suitable for the person and follow its label.

  1. On your body

    Covering clothing and a suitable repellent.

  2. In the building

    Bed nets and window screens in good condition.

  3. Around the home

    Empty or cover containers that hold water.

Organise protection at three levels — explanations and limits
Before the activityPractical checkMistake to avoid
Choosing a repellentRead the age limits, precautions and instructions.Applying a product without checking its restrictions.
Preparing the sleeping areaCheck that the net closes properly and has no holes.Forgetting that bites can occur outside sleeping hours.
Checking around the homeLook for plant saucers, buckets and outdoor containers.Checking only large bodies of water.
Real photograph of a female Aedes albopictus taking a blood meal on skin
Real photograph: Aedes albopictus. CDC / James D. Gathany, 2002. Public domain. Free source and record: CDC PHIL, image 1862. This view records blood feeding; it does not reveal whether the mosquito carries a pathogen.
Keep in mind

Bite protection complements guidance for the trip or area. It does not replace medical prevention when indicated.

References for these explanations

Sources consulted on . Examples and diagrams are educational; the original guidance defines its scope.

04Not to be done

Frequent errors

  • Use an essential oil as an automatic equivalent of an authorized repellent.
  • Spray directly on the face or on irritated skin.
  • Apply under clothing or multiply doses without reading the label.
  • Forget the small containers of standing water close to the housing.
  • Consider a holed or mislined net as a complete protection.
Important limitAsk for advice for an infant, pregnancy, allergy, skin disease or a stay in malaria area. A fever during or after a trip may require a quick assessment: indicate the destinations and dates, even if the bites have not been noticed.

Frequently Asked Questions

Do mosquitoes only sting at night?

No. Some species are mostly active during the day, others at dusk or at night. Local recommendations should guide the protection period.

Is a repellent bracelet enough?

It does not replace the application of an authorized repellent on exposed skin, covering clothing and shelter barriers.

How do I combine sunscreen and repellent?

First apply the sun protection, then the repellent after drying, following the instructions for each product.

Why empty the saucers and buckets?

Small volumes of water can be used as larval lodgings. Emptying and brushing them regularly reduces reproduction nearby.

Check implementation

These points serve as a reminder to prepare the action. The boxes are not registered.

Sources used

These institutional references provide a means of checking the guide and accessing the full recommendations.

PratiqueCheck before deciding

Votre liste de vérification

  • Vérifier les recommandations du lieu et de l’itinéraire.
  • Lire les limites d’âge et précautions du répulsif.
  • Prévoir vêtements et protection du couchage adaptés.
  • Remove avoidable small collections of standing water around the home.

Use alongside the guide’s steps, limitations and sources.