[The age aspects of clinical and morphological features of chronic gastritis viral and bacterial etiology].

The article contains the results of studies of clinical and morphological features of chronic gastritis of viral and bacterail etiology in age aspects. Chronic gastritis when infected with Epstein-Barr virus in elderly patients has clinical and morphological differences from chronic gastritis associated with Helicobacter pylori infection, consisting in significantly lower severity of regenerative changes in the cervical epithelium of the mucous membrane of the body and antrum of the stomach, cervical mucosal epithelium of the body, antrum, bottom mucosal epithelium of the stomach body; and significantly more rare intestinal metaplasia in the stomach and the absence of stromal fibrosis antrum.

[Chronic gastritis and herpetic infections in subjects of different ages].

Gastric mucosal biopsy specimens were immunohistochemically studied to detect the antigens of herpes simplex virus, cytomegalovirus, and Epstein-Barr virus (EB ) in 103 children aged 7-17 years and 49 adults aged 18-78 years who suffered from morphologically verified chronic gastritis. Gastric mucosal virus antigens were found in 70% of the children (including EBV in 44.8%; herpes simplex virus in 34.

[Thyroid diseases in residents of St. Petersburg].

The degree of tensity of ecological and hygienic state of basic factors can be represented in terms of grades. In St. Petersburg three basic factors reach 5 grades in 7-grade scale.