Typhoid is an infectious disease caused by the bacteria Salmonella typhi which causes severe symptoms in the digestive system. It can be life-threatening, but if treated early antibiotics are effective.

Typhoid is found in countries with inadequate sanitation and is endemic in Indian subcontinent, South East Asia, parts of the Middle East, Central and South America and Africa. Around 22 million cases of typhoid fever and 220,000 deaths occur annually (WHO 2014).