Outline5 marksStandard
A region in a low-income country has experienced a steady increase in tuberculosis (TB) cases over the past three years. In 2022, the government introduced a directly observed therapy (DOTS) programme, which led to a reduction in new cases. The table below shows the number of new TB cases reported each year.
| Year | New TB cases reported |
|---|---|
| 2019 | 1200 |
| 2020 | 1450 |
| 2021 | 1700 |
| 2022 | 1100 |
Outline the biological, social and economic factors that should be considered when planning the prevention and control of tuberculosis in this region.