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Enterotoxigenic Escherichia coli (ETEC) strains are important pathogens in developing countries. Some vaccine formulations containing the heat labile toxin B subunit (LTB) have been used in clinical(More)
The aim of the study was to investigate the distribution of mutans streptococci (MS) infection of caries-free (CF) and caries-active (CA) preschool Mexican children by microbial and molecular assays.(More)
Expression of the protective F1 and V antigens of Yersinia pestis, as a fusion protein, in carrot was pursued in an effort to develop an alternative vaccine production system against the serious(More)
Human metapneumovirus (hMPV) is an important cause of acute respiratory infections (ARI). We studied 335 ARI episodes in 74 children<5 years of age attending a day care center during a 1-year period(More)