Malaria Vaccination In London

Malaria maps and specific malaria advice for each country affected by malaria is available on the individual country pages

Introduction

Malaria is a serious parasite infection that is transmitted by the bite of female mosquitoes. The parasites are microscopic and found in the blood of infected people. There are different types of malaria parasite and although the infection they cause is similar. ‘Falciparum’ malaria is the one that causes the most severe infection.

Malaria can be deadly if untreated.

Symptoms of malaria:

usually include a high temperature (fever) accompanied by shivering and sweating
are often described as 'flu-like' and can be accompanied by a variety of other symptoms, such as muscle aches, headache or vomiting
can be vague, especially in children who may simply be 'out of sorts'

Malaria symptoms can quickly become severe if effective treatment is not started quickly.

You must seek urgent medical attention if you become unwell with symptoms suggestive of malaria during, or after a visit to a country with malaria.

You cannot be vaccinated against malaria, but you can protect yourself against this disease using the ABCD approach to prevention as follows:

A = Awareness of risk

Malaria is widespread in many tropical and subtropical countries.

  • Find out if there is a risk of malaria in the country you intend to visit on the malaria section on each country page:
    • if malaria is present, there will also be a map showing the malaria-affected areas in that country at the moment (note that risk areas can change)

The risk is described as:

Be aware that the risk of malaria can vary within different parts of the same country, between neighbouring countries, and at different times of year.

Risk for travellers

Every person regardless of their origins who visits a country where malaria is present is at risk of catching malaria.

Increased risk of catching malaria
Some groups of people are at increased risk of catching malaria because of the type of travel they are undertaking. These groups include:

  • people who are travelling to visit friends or relatives
  • those planning a longer stay in rural areas 
  • longer term travellers to areas with malaria

Increased risk of developing severe malaria
There are also groups of people who are at an increased risk of developing severe malaria if they catch the infection. These include:

  • pregnant women
  • babies and children
  • older people
  • people with conditions that affect the immune system
  • people without a spleen
  • people with certain medical conditions

B = Bite Prevention

Protecting yourself against mosquito bites is essential.

Reducing the number of bites you receive reduces your chance of developing malaria.

Mosquitoes that transmit malaria typically bite at night, after sunset.

There are also day biting mosquitoes that transmit other potentially serious diseases, so make sure you protect yourself against mosquito bites at all times of the day and night.

Take practical measures to avoid mosquito bites including:

using good quality insect repellents
wearing the right clothing to protect your skin from bites
using a mosquito net
reducing the number of mosquitos in and around your accommodation

C = Chemoprophylaxis (taking malaria prevention tablets)

Find out the risk of malaria in the country you intend to visit by checking the malaria section on each country page.

The malaria section will indicate if you need to take tablets to prevent malaria (antimalarials).

For countries with a high risk:

antimalarial tablets are recommended for everyone
bite prevention is recommended for everyone

For countries with a low risk with additional advice:

antimalarial tablets are recommended for everyone
bite prevention is recommended for everyone

For countries with a low to no risk:

antimalarial tablets may be recommended if there is an outbreak of malaria for those at increased risk of catching malaria or increased risk of severe malaria:
bite prevention is recommended for everyone

Protecting yourself against mosquito bites is as important as taking antimalarial tablets.  This is because:

How to take antimalarial tablets:

You should begin taking antimalarial tablets before arriving in a malaria-risk area as guided by your travel health professional.

Some tablets need to start a few days before you travel, whilst others may need to be started a week or more before travel.
This means there will be enough antimalarial medication in your system to start preventing infection as soon you arrive in the country.

It is important to take the tablets regularly and as directed – missing tablets can lead to malaria infection.

It may be helpful to set an alarm to remind you when to take your tablets.

You must complete the course of tablets even after you have left the malaria area:

stopping a course of tablets early, even when you are no longer in a malaria area, can lead to you developing malaria infection if the parasites are already in your body
the length of time you have to keep taking the tablets after you leave the malarial area is different for different drugs, and you will be advised about this

In the UK, antimalarial tablets require a prescription, except for:

chloroquine, which can be bought from local pharmacies
Atovaquone/proguanil (often known as Malarone or Maloff protect) which can be bought from local pharmacies (with some restrictions)

D = Diagnosis and prompt treatment

Quick diagnosis and access to prompt treatment for malaria saves lives. The most serious forms of malaria can become life-threatening within 24 hours.

If you think you might have malaria it is very important to seek medical attention urgently.

Remember that the symptoms can be vague.
Infection can occasionally still develop even if you have taken antimalarial tablets.
The most serious form of malaria ('falciparum' malaria) can occur around 6 days after first entering a malaria area and up to 30 days (occasionally longer) after leaving a malaria area.
If in doubt, seek medical advice and seek it quickly.

Some types of malaria can develop many months after you have visited a malaria affected country:

if you develop a high temperature (fever) between 1 week after first potential exposure and up to 1 year after your return from a country with malaria, you should seek medical attention urgently and tell the doctor that you have been in a malaria risk area.

Emergency Standby Treatment for Malaria

If you are travelling to remote or rural areas of a malaria-risk country where you will be unable to access medical care quickly, or to an area where available medical facilities have limited resources or offer low standards of care, then you may be advised by a travel health professional to carry a course of standby emergency treatment (SBET) for malaria.

SBET is not a replacement for taking antimalarial tablets when travelling to a country with a risk of malaria.
If you think you may benefit from carrying SBET, you should see a travel health professional for a travel health risk assessment before travelling to a malaria-affected country: