There is no vaccine for shigella. Scientists are still working to find one.
shigella sp or shigella spp = shigella species
Eubacteria is the Kingdom of shigella.
The color of shigella in the DCA medium is straw or pink.
Shigella attacks all people especially weak children or infants.
Dysentery is the disease name. The pathogen name is Shigella Dysenteriae.
Shigella infection spreads through food or water contaminated by human waste.
Four different groups of Shigella can affect humans.
Shigella are identified by a combination of their appearance under the microscope and various chemical tests.
Shigella species are generally indole negative, except for Shigella flexneri, which can be indole positive depending on the specific strain. In laboratory identification, indole testing is used to differentiate between various enteric bacteria. Therefore, while most Shigella species do not produce indole, Shigella flexneri may show positive results under certain conditions.
Based on my own test, Shigella flexneri tests negative for the citrate test.
Salmonella, Shigella Organisms that ferment lactose display "nucleated colonies" - colonies with dark centers.