Здоровье И Средства Правовой Защиты

Coloured SEM of Shigella dysenteriae bacteria, the cause of dysentery in humans. Several of the rod-shaped, non-motile, Gram- negative bacterial cells can be seen. Dysentery affects mainly the large intestine and varies in severity from a mild attack of diarrhoea to an acute infection. Until the introduction of sulphonamide drugs in the 1930s it was a world- wide killer disease. It still affects the young, elderly and malnourished. Infection is spread by flies, dir