Facts about ty­phoid fever:

The Herald (Zimbabwe) - - National News -

What is ty­phoid?

Ty­phoid fever is an acute ill­ness as­so­ci­ated with fever caused by the Sal­mo­nella ty­phi bac­te­ria. It can also be caused by Sal­mo­nella paraty­phi, a re­lated bac­terium that usu­ally causes a less se­vere ill­ness.

The bac­te­ria are de­posited in wa­ter or food by a hu­man car­rier and are then spread to other peo­ple in the area.

How Peo­ple Con­tract ty­phoid

Ty­phoid fever is con­tracted by drink­ing or eat­ing the bac­te­ria in con­tam­i­nated food or wa­ter.

Peo­ple with acute ill­ness can con­tam­i­nate the sur­round­ing wa­ter sup­ply through stool, which con­tains a high con­cen­tra­tion of the bac­te­ria.

Con­tam­i­na­tion of the wa­ter sup­ply can in turn, taint the food sup­ply.

The bac­te­ria can sur­vive for weeks in wa­ter or dried sewage.

Re­ports say about 3 per­cent to 5 per­cent of peo­ple be­come car­ri­ers of the bac­te­ria af­ter the acute ill­ness.

Oth­ers suf­fer a very mild ill­ness that goes un­de­tected.

These peo­ple may be­come long-term car­ri­ers of the bac­te­ria — even though they have no symp­toms — and be the source of new out­breaks of ty­phoid fever for many years.

Symp­toms of ty­phoid

The in­cu­ba­tion pe­riod is usu­ally one to two weeks, and the du­ra­tion of the ill­ness is about 3-4 weeks. Symp­toms in­clude:

◆ Poor ap­petite

◆ Headaches

◆ Gen­er­alised aches and pains

◆ High tem­per­a­tures

◆ Lethargy

◆ Di­ar­rhoea Source — www.we­bmd.com

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