Q.
Which of the following statements regarding the disease typhoid is/are correct?
(i) Salmonella typhi are the pathogenic bacteria which enter human intestine through contaminated food and water and migrate to other organs through blood.
(ii) Sustained high fever $(39^°C$ to $40^°C)$, weakness, stomach pain, constipation, headache and loss of appetite are some common symptoms of typhoid.
(iii) Typhoid vaccine is available as $DPT$ vaccine.
(iv) Widal test is used for diagnosis of typhoid fever.
(v) The patient of this disease is not required to be treated with antibiotics.
Human Health and Disease
Solution: