Catalog

Paratyphoid fever A

No MMS code

Link to WHO Definition

Paratyphoid fever A – http://id.who.int/icd/entity/1045590756

Paratyphoid fever A is caused by Salmonella enterica serotype paratyphi A (Salmonella paratyphi A) and is similar to typhoid fever. Salmonella paratyphi A is isolated much less frequently than Salmonella typhi. In biochemical testing Salmonella paratyphi A isolates on TSI/KIA (Triple Sugar Iron Agar/Kligler Iron Agar) are usually K/AG (K = alkaline; A = acid; G = gas production) and do not produce H2S (Hydrogen sulfide). Unlike most other Salmonella, Salmonella paratyphi A isolates are lysine-negative and appear yellow on LIA (Lysine iron agar).