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  • Scientists discovered new methods of hygiene.
    New methods of hygiene were discovered.
  • Workers cleaned the streets every week
    The streets were cleaned every week
  • Ancient people washed their hands rarely.
    Hands were washed rarely
  • People threw rubbish into the streets.
    Rubbish was thrown into the streets.
  • Doctors did not wash their hands before operations.
    Hands were not washed before operations.
  • Romans built public baths.
    Public baths were built by the Romans
  • Doctors have saved many lives.
    Many lives have been saved.
  • Scientists will develop new medicines.
    New medicines will be developed.
  • People are improving hygiene today
    Hygiene is being improved today.
  • People spread diseases quickly.
    Diseases were spread quickly.
  • Doctors cleaned patients with herbs.
    Patients were cleaned with herbs
  • The government built hospitals in cities.
    Hospitals were built in cities.
  • Scientists have improved hygiene standards.
    Hygiene standards have been improved.
  • People used water from rivers.
    Water was used from rivers
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