A social factor that increases the spread of TB is

  1. overcrowded, poorly ventilated housing
  2. clean water supply
  3. pasteurised milk
  4. vaccination
Answer

A) overcrowded, poorly ventilated housing

Droplets spread easily in crowded homes. AS & A Level Biology · Topic 10 Infectious Diseases · 10.1 Infectious diseases

Biology MCQ · More A Level Biology: Infectious diseases MCQs · Practise