Parasites | Community Health

Parasites are organisms that live on or inside another organism, known as the host, and cause harm to the host while benefiting themselves. This complex relationship has evolved over millions of years, with parasites adapting to their hosts in various ways, including structural changes and manipulation of the host's behavior. According to the World Health Organization (WHO), approximately 3.5 billion people worldwide are infected with some type of parasite, with many more at risk due to factors such as poor sanitation, lack of access to clean water, and climate change. The economic burden of parasitic diseases is substantial, with estimates suggesting that they cost the global economy over $100 billion annually. Researchers like [[dr-anthony-fauci|Dr. Anthony Fauci]] and organizations like the [[cdc|Centers for Disease Control and Prevention]] (CDC) are working to combat the spread of parasitic diseases through education, prevention, and treatment efforts.