How many bacteria need to be ingested to cause a salmonella

How many bacteria need to be ingested to cause a salmonella typhi

Solution

salmonella typhi , is a gram negative , non spore forming , facultative anaerobic, bacillius shaped bacteria.salmonella enters the gastro intestinal tract through contaminated food or water.salmonella doesn\'t contain an acid virulence factor, so many of them killed by they pass by the stomach, so a large number of bacteria approximately around 1,00,000 bacteria cells must be ingested to cause a salmonella typhi