Widal Test

The Widal test is a serological blood test used to detect antibodies against specific Salmonella bacteria, including Salmonella typhi and Salmonella paratyphi. These bacteria are responsible for causing typhoid and paratyphoid fevers, respectively. The Widal test is commonly employed in regions where these diseases are prevalent or during disease outbreaks to aid in diagnosing typhoid and paratyphoid fevers. It helps identify if a person has been exposed to these bacteria and has developed antibodies against them.