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Behaviour worthy of a predator
Unlike other ticks, who wait patiently for an animal to pass within range, the Hyalomma adopts a much more active strategy: it can detect a multi-meter host, pursue it over distances of up to 100 meters, and cling to it at the slightest opportunity.
Imagine a GPS-equipped blood mini-vacuum cleaner, ready to appear as soon as it perceives heat or carbon dioxide. That is the disturbing image that this tick evokes.
A Game-changing virus: Crimean-Congo haemorrhagic fever
The real danger, however, is not only its size or agility. This tick is a potential vector of Crimean-Congo haemorrhagic fever (CHF), a serious virus disease transmitted by prick.
In humans, CHFHC can cause high fever, muscle pain, digestive disorders and, in the most serious cases, internal bleeding. The mortality rate can rise to 30%, which alarms the health authorities, although no cases have been detected in France at the moment.
Simple but crucial precautions
Fortunately, it is possible to limit the risks. Here are some key recommendations for your summer trips:
- Wear long-cover clothing, arms and legs.
- Opt for closed shoes, especially if you're walking in the tall grass.
- Inspect your body when returning from an exit, especially behind the knees, under your arms and in the hairy areas.
- Use appropriate repellents on the skin and clothing.
Not all Hyalomma ticks carry the virus. But vigilance is still in order.
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