Description of the two novel species of the genus Helicobacter: Helicobacter anatolicus sp. nov., and Helicobacter kayseriensis sp. nov., isolated from feces of urban wild birds

Molecular surveillance of Helicobacter species with high prevalence from two streams with various wastewater pollution in Taiwan

“…These strains have gained considerable attention in the current society primarily because of their association with gastrointestinal diseases in humans [ 35 ]. In the present study, the most abundant Helicobacter strain identified in the Yanshui and Donggang rivers was H. kayseriensis , which is a novel strain found in the feces of wild birds [ 36 ]. H. valdiviensis , which was first detected in wild bird droppings, is a potential pathogen of intestinal infections in humans [ 37 ].…”

“…H. valdiviensis , which was first detected in wild bird droppings, is a potential pathogen of intestinal infections in humans [ 37 ]. H. canadensis and H. pullorum have been found in human droppings [ 36 , 38 ], and H. felis has been detected mainly in feline animals [ 39 ]. However, phylogenetic tree analysis showed that the H. winghamensis , H. canadensis , and H. valdiviensis were classified into the same cluster (Cluster 11), implying that these Helicobacter species share a similar relationship.…”

“…Livestock pollution was reported in TKC6, TKC5, TKC4, TKC3, YSC5, YSC4, YSC3, and YSC2, and H. kayseriensis (6/16, 37.5%) was the most prevalent Helicobacter species. H. kayseriensis is often found in animal feces, suggesting that contamination at these sampling sites could be mainly related to animal husbandry [ 36 ]. It also implies that sources of contamination could be identified from the types of Helicobacter species.…”

“…The Helicobacter species detected after comparison were H. kayseriensis (NR_181912.1) and Helicobacter sp. (KJ081208.1), which were detected in magpie and Cordylus warreni , respectively [ 36 , 45 ].…”

Helicobacter ibis sp. nov., isolated from faecal droppings of black-faced ibis (Theristicus melanopis)

“…Wild birds are an important reservoir for EHH, with Helicobacter pametensis [3], Helicobacter anseris, Helicobacter brantae [4], Helicobacter canadensis [5] and Helicobacter valdiviensis [6] having been isolated from faecal samples of these hosts. Additionally, very recently, two new species from birds were described in Turkey, 'Helicobacter anatolicus' and Helicobacter kayseriensis [7]. Some of these species have also been linked to human infection.…”