Rapid Test

Salmonella typhi + paratyphi


CerTest Salmonella typhi+paratyphi one step combo card test is a coloured chromatographic immunoassay for the simultaneous qualitative detection of Salmonella typhi and Salmonella paratyphi in stool samples and Salmonella typhi and Salmonella paratyphi suspected colonies in stool culture.

CerTest Salmonella typhi+paratyphi combo card test offers a simple and a highly sensitive screening assay to make a presumptive diagnosis of Salmonella typhi and/or Salmonella paratyphi infection and it could be used to identify isolates of Salmonella typhi and Salmonella paratyphi form selective media (stool culture).


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Enteric fever (typhoid and paratyphoid fever) is a major human bacterial infection. Although the disease is not common in industrialised countries, it remains an important and persistent health problem in developing nations. That enteric fever is a major public health problem in those countries, with Salmonella enterica serovar typhi (Salmonella typhi) the most common aetiologic agent but with an apparently increasing number of cases due to Salmonella paratyphi.

Because risk factors such as poor sanitation, lack of a safe drinking water supply and low socio economic conditions in resource-poor countries are amplified by the evolution of multidrug resistant salmonellae with reduced susceptibility to fluoroquinolone, which is associated with increased mortality and morbidity.

In Europe, Salmonella typhi and Salmonella paratyphi infections occurs among travellers returning from disease endemic areas.

Enteric fever caused by Salmonella paratyphi is indistinguishable from that caused by Salmonella typhi. This fever usually develops one to three weeks after exposure and caries in severity. Symptoms include high fever, weakness, lethargy, muscle pain, headache, loss of appetite and diarrhea or constipation. Pink spots appear on the chest; examinations will usually reveal enlargement of the liver and spleen.

In severe cases, symptoms of altered mental status and meningitis (fever, stiff neck, seizures)have been reported.

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