When using public transport, help fight TB & COVID-19 with good ventilation. Germs and infectious diseases (like TB and COVID-19) spread easily in badly ventilated spaces. This is because a higher concentration of germs can build up in the air, hanging around in aerosols and infecting anyone that breathes them in. But good ventilation can help curb the spread of germs! When using public transport always wear a mask and keep the spaces you're in well ventilated by opening windows and letting fresh air in.
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