Dudelange's vet inspection labs are currently examining one to three wild boar deaths per day, usually spotted and reported by walkers to local foresters.

Since the African swine fever was discovered in Belgium, every carcass found in the Grand Duchy has been tested. But of the 143 tested so far, none have come back positive for African swine fever.

Two new cases on Tuesday afternoon have now brought the total number of inspected carcasses up to 145. Analyses take 24 hours, according to Manon Bourg, one of the Dudelange Laboratory of Veterinary Medecine vets.

Every animal is screened

Every single wild boar that ends up at the laboratory is thoroughly examined. So far, the Grand Duchy remains in the clear. All tests take place on the same day, although methods may vary. Ordinarily, vets check blood samples and the animal's spleen, unless there are any doubts, in which case a complete autopsy is performed.

What is the African swine fever?

ASF is not the same as the swine flu. Highly resistant, it survives without an active host in cadavers (even frozen), meat products, and insects or ticks, for roughly six months.

The virus made its way over to Europe in 2007, registering in Eastern Europe in 2014 and recently made it to Belgium in an extraordinary leap. According to experts, there is no way this happened naturally.

No vaccine in sight

The viruses are practically identical in both name and symptoms – while neither of them have a cure, there is no vaccine for the ASF

Symptoms in the pig

Pigs with the virus suffer badly with a high fever and have survival rates of a week. Piglets are likely to have been infected in the womb or during feeding.

How to react

There are no reports of excessive aggressive behaviour in either male or female wild boars, so there is no reason to panic should you cross paths with one. Just call the hotline: 24756-666. The government's Ministry of Agriculture website has circulated EFSA's (European Food Safety Authority) video about African swine fever.