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EMERGING AND RE-EMERGING DISEASEDr. Muhammad Tareque HasanTeaching AssistantDepartment of EpidemiologyBUHS
What is emerging infections•Infectious diseases that have newly appeared in the population or have existed in the past but rapidly increasing in incidence (Morse 1995)
Re-emerging infections•Incidence in humans has increased during the last 20 years or threatens to increase in the near future•Existed in the past but are now rapidly increasing either in incidence or in geographical or human host range
Re-emerging diseases in Bangladesh•Plague•Leptospirosis
Factors giving rise to the emerging / re-emerging infectionsMigration•rural to urban – rapid urbanisation•consequences- overcrowded, lack of hygiene, inadequate water supply•increased risk of airborne, waterborne & foodborne ds•Uncontrolled urbanization with inadequate vector control- increase risk of DF/DHF