Mosquitoes, the
world's deadliest animal
|
One mosquito was recorded spreads
deadly West Nile Virus. Mild weather and global warming means they could thrive
across England. It is believed the insects also end up arriving on aeroplanes
and lorries, Daily Mail reports.
Public health officials are monitoring Britain’s southern
borders amid concerns deadly mosquitoes are heading our way.
Experts fear that the disease-carrying mosquitoes which were
already spotted around Europe are crossing the Channel.
One invasive mosquito already seen in Kent is culex modestus,
which spreads the infectious West Nile virus.
The disease causes serious flu-like symptoms and leads to
swelling of the brain and spinal cord in the most serious cases.
And with the continuing mild weather and global warming they
could thrive across Southern England.
Species such as the Asian tiger mosquito act as carriers for
diseases such as potentially fatal dengue fever, which can also cause shock,
bleeding and organ damage.
Dr Jolyon Medlock, programme leader with Public Health
England’s medical entomology team, said authorities are monitoring the
situation closely.
He said: ‘One of the things we are looking at is the
incursion of invasive mosquitoes which act as vectors for diseases such as
dengue fever and chikungunya.
The number of cases is fairly low in Europe at the moment but
with climate change and increased globalization there is the potential for that
to change.
‘Given the continued spread of invasive mosquitoes in continental
Europe, PHE continue to conduct surveillance at ports of entry and some
motorway service stations.
‘We are also providing an identification service for nuisance
mosquitoes.’
Dr Medlock said it was difficult to detect exactly how
invasive species make it to Britain but said there was a number of potential
entry routes.
He said Asian tiger mosquitoes – a large and aggressive
variety – breed in tyres, laying eggs which can survive dormant for up to 18
months. When the tyres are exported to Europe the eggs travel with them and
hatch when conditions are right.
It is believed the insects also end up arriving on aeroplanes
and lorries stopping on the continent enroute to Britain.
The Asian tiger mosquito bites during the day and is already
a major problem in Italy and parts of southern Europe.
It is also identified as a carrier of chikungunya, which like
dengue fever can cause severe fevers of up to 40 degrees followed by joint pain
that can last for years.
Mosquitoes need water to reproduce and Dr Medlock said
covering water sources would help minimise potential breeding sites.
He said:
‘We encourage good “garden husbandry” in the summer months, by reducing the
number of container habitats around the garden. This includes turning upside
down buckets, emptying paddling pools that aren’t being used, unblocking drains
and putting lids on water butts.’
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