Emerging & Re-Emerging Infectious Diseases
Emerging diseases are diseases that have increased in frequency in humans over the past two decades, while reemergence refers to the reappearance of a known disease after a significant decline in incidence4. The magnitude of the problem is illustrated by the emergence of several new pathogens, including human immunodeficiency virus (HIV) and other retroviruses, arenaviruses, hantaviruses, and Ebola viruses that cause severe illness. Ancient pathogens such as cholera, plague, dengue hemorrhagic fever, and yellow fever have resurfaced and are having a significant impact on the Americas.
Re-emerging diseases are diseases that have existed for decades or centuries but are reappearing in a different form or in a different location. Examples include West Nile virus in the Western Hemisphere, monkeypox in the United States, and dengue fever, which has re-emerged in Brazil and other parts of South America and has spread to the Caribbean.
- HIV/AIDS
- Malaria and Tuberculosis
- Influenza
- SARS
- Ebola
- Nipah
- West Nile Virus
- Monkey pox
