ABSTRACT Expression of capsular polysaccharides is a variable trait often associated with more-virulent forms of a bacterial species. For example. typhoid fever is caused by the capsulated Salmonella enterica serovar Typhi. while nontyphoidal Salmonella serovars associated with gastroenteritis are noncapsulated. https://megavitamines.shop/product-category/melatonin-gummies-adults/