barriers

• outline barriers

  • limits the spread of disease
  • can be physical or socio-economic
• examples of physical barriers

  • mountains
  • oceans
  • distance
  • rainforest
  • climate
• what is the most important physical barrier?

  • the probability of a contagious disease spreading to an area is lower when it is further from the place of origin
  • this is called distance decay
• global mobility - socio-economic barrier

  • improved transport and communication linked to globalisation
  • eg. bigger airplanes and widespread rail networks
  • improved the ability of aid agencies to respond faster to disease crisis areas
• technology - socio-economic barrier

  • linked to a country's level of economic development
  • the ability to invest funding into mitigation and treatment of diseases
• education - socio-economic barrier

  • WHO and the Red Cross aim to educate people about disease
  • successful at both grassroots level and national levels