Thu Nguyen's List: ScienceOlympiadDiseaseDetectives

• influenced by numerous environmental factors,
• infectious organisms such as fungi and viruses
• pollutants such as chemical and biological wastes
• shortages of food and nutrients
• when a human is infected by a parasite that is drawing heavily on nutrients in  the human, such as a blood parasite, it is difficult to determine whether the  individual died from malnutrition or from the parasitic infection
• air, water, or soil pollutants or other stresses that affect humans and other  species in the ecosystem add to the complexity of the situation.
• Rapidly expanding human populations and widespread environmental degradation  contribute to expanded world disease problems
• provide the ideal
• Crowded conditions
• Black Death, cholera, tuberculosis (TB), and HIV are essentially problems of  dense urban populations
• environment for the culture and spread of old diseases, such as cholera and TB
• newly emerging diseases, such as HIV
• infectious diseases cause approximately 37% of all deaths worldwide
• 40% of world deaths
• attributed to various environmental factors, especially organic and chemical  pollutants
• 3 billion humans suffer from malnutrition
• 4 million infants and children die each year from diarrhea, which is caused  largely by contaminated water and food

15 more annotations...