Presence of <i>Helicobacter pylori</i> and <i>H. suis</i> DNA in Free-Range Wild Boars
2021
Francisco Cortez Nunes | Teresa Letra Mateus | Sílvia Teixeira | Patrícia Barradas | Chloë de Witte | Freddy Haesebrouck | Irina Amorim | Fátima Gärtner
<i>Helicobacter pylori</i> (<i>H. pylori</i>) is a Gram-negative bacterium that infects half of the human population worldwide, causing gastric disorders, such as chronic gastritis, gastric or duodenal ulcers, and gastric malignancies. <i>Helicobacter suis (H. suis)</i> is mainly associated with pigs, but can also colonize the stomach of humans, resulting in gastric pathologies. In pigs, <i>H. suis</i> can induce gastritis and seems to play a role in gastric ulcer disease, seriously affecting animal production and welfare. Since close interactions between domestic animals, wildlife, and humans can increase bacterial transmission risk between species, samples of gastric tissue of 14 free range wild boars (<i>Sus scrofa</i>) were evaluated for the presence of <i>H. pylori</i> and <i>H. suis</i> using PCR. Samples from the antral gastric mucosa from two animals were PCR-positive for <i>H. pylori</i> and another one for <i>H. suis</i>. These findings indicate that these microorganisms were able to colonize the stomach of wild boars and raise awareness for their putative intervention in <i>Helicobacter</i> spp. transmission cycle.
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