an extract of henna (lawsonia inermia) was found to be active in vitroagainst gram (+) and gram (-) bacteria including bacillus anthracis, b.cereus, b. subtilis, enterobacter aerugenes,escherichia coli 0128-b7, e.coli 055-b5, e. colio127-b8, proteus mirabilis, p. vulgaris, pseudomonas aeruginosa salmonella typhosa, s.paratyphi, sarcina sp. shigella dysenteriae type 1, s. dysenteriae type 7, s. ...