Paratyphoid fever, also known simply as paratyphoid, is a bacterial infection caused by one of the three types of Salmonella enterica. Symptoms usually begin 6–30 days after exposure and are the same as those of typhoid fever.
What is O and H in typhoid?
According to Felix,' most typhoid infections produce both H and. O agglutinins-the H (flagellar) designating the infecting organism, and the 0 (somatic) expressing the body's response to infection.
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