Type of disease

Number of cases during July-August ^a

Number of cases during the rest of the year^b

Total number of cases^c

Estimated cases due to canal obstruction^d

Malaria

1800

2600

4400

4100

Simple diarrhea

800

1100

1900

1800

Dysentery

500

600

1100

1000

Total

3100

4300

7400

6900