摘要
Helicobacter pylori are ubiquitous Gram-negative bacteria with a high estimated level of infection in the world populations, but a majority of the infected persons are asymptomatic. This pathogen has been classified by the World Health Organization as a class I carcinogen and recognized as the causal agent of most peptic ulcers and chronic gastritis that might lead to stomach cancer. Although not all the transmission pathways of these bacteria into humans have been properly identified, enough data have suggested that the oral-oral or fecal-oral ones are the main infection routes. Helicobacter pylori have been detected in non-treated water and in drinking water, which suggested that water might be an important infection source. As childhood is the critical period of infection, the aim of the present work was to examine the presence of Helicobacter pylori in soil samples from public playing areas of Spanish parks.
Helicobacter pylori are ubiquitous Gram-negative bacteria with a high estimated level of infection in the world populations, but a majority of the infected persons are asymptomatic. This pathogen has been classified by the World Health Organization as a class I carcinogen and recognized as the causal agent of most peptic ulcers and chronic gastritis that might lead to stomach cancer. Although not all the transmission pathways of these bacteria into humans have been propedy identified, enough data have suggested that the oral-oral or fecal-oral ones are the main infection routes. Helicobacterpylori have been detected in non-treated water and in drinking water, which suggested that water might be an important infection source. As childhood is the critical period of infection, the aim of the present work was to examine the presence of Helicobacterpylori in soil samples from public playing areas of Spanish parks.
基金
supported by the Ministry of Education and Science of Spain(No.CTM2005-106457-C05-05/TECNO),FPI grant from Ministry of Education and Science of Spain,and FI grant from the Comissionat per a Universitats i Recerca del Departament d'Innovació,Universitats i Empresa de la Generalitat de Catalunya i del Fons Social Europeu
关键词
幽门螺杆菌
土壤样品
西班牙
高水
游乐场
感染途径
公众
量化
Heficobacterpylori, Real time polymerase chain reaction (qPCR), Environmental soil samples