Jetting off to an exotic location? Have you checked if you need to take precautions for Malaria?
Malaria. It’s a word that we cannot escape thinking about it when planning an exotic holiday – maybe a safari in Kenya or sightseeing in India. The good news is that Malaria is almost completely preventable when the right precautions are taken.
However, according to this article, cases of malaria in people living in Britain has risen by almost a third in two years, with many cases blamed on complacent attitudes to anti-malarial tablets. Figures from the Health Protection Agency show that 1,761 cases were reported last year, compared with 1,495 in 2009 and 1,370 in 2008. Of 997 cases where information was available, 850 involved people who had not taken anti-malaria pills in countries where the disease was prevalent.
Malaria is spread by mosquitoes. Four out of 10 cases in 2010 were among UK residents who had travelled to Nigeria or Ghana and 11% were people who had visited India. 500 million new cases of malaria are reported worldwide each year.
57 countries are registered as ‘malaria-endemic’, with the disease posing a threat to human life. So it is always worth checking if you need to take Malaria precautions before you go on holiday. Remember – if you don’t take the proper precautions, you will not be covered under your travel insurance if you do get ill.
Ok so there is one problem here – it’s well known that malaria medication can sometimes cause side effects, including things like pretty nasty nightmares. So in an ideal world, we could stop the mosquitoes spreading the malaria in the first place. Now, a genetic breakthrough may help us do just that.
Scientists have figured out a way to block the spread of malaria using genetically-modified (GM) mosquitoes that carry malaria-blocking genes that stops the blood parasite (which causes Malaria) being passed to humans when they are bitten.
This new study has shown that it is possible for GM mosquitoes to rapidly pass on malaria-blocking genes to wild mosquitoes with the help of a second gene, called the endonuclease gene.
Professor Andrea Crisanti of Imperial College London said that laboratory experiments have now shown that the endonuclease gene is very effective at spreading through a caged population of mosquito. After introducing a few GM males into the laboratory population of mosquitoes, about 50% of the captive mosquitoes had the anti malaria trait within 12 generations of the first introduction – a period of just a few months.
However, there is a lot more research to be done before field trials (releasing these GM mosquitoes into the wild) can be considered. We will keep you posted when we hear more…
(Don’t forget you can also download the AllClear Travel App to find out what vaccinations you might need for your holiday.)
