Chest & TB
Advice on Prevention of TB
- At any time, staff or students with symptoms suggestive of TB including persistent cough over 3 to 4 weeks, blood in sputum, weight loss, afternoon fever and night sweating should seek prompt medical consultation.
- TB spreads mainly by air. It is essential to maintain good indoor ventilation by means of natural ventilation or mechanical ventilation such as exhaust fans. Furniture, tables and walls do not play any significant role in the transmission of the infection. Regular cleaning of the environment should be done as general hygienic practice. The dust filtres of the air-conditioners should be cleansed as usual.
- “Non-open” TB cases are non-infectious. For “open” cases, once anti-TB treatment is started, the risk of spreading the infection is rapidly reduced. For most TB patients, strict isolation is not necessary. However, sick leave may be recommended for patient when indicated (usually 2 weeks or more). The patient may resume usual school work after medical assessment for the rest of the treatment period. The total duration of treatment usually lasts for 6 or more months