Chronic Disease - Any disease that is long lasting (3 months or more) or recurrent—as opposed to an acute disease—and cannot be prevented by a vaccine or cured by medication.⏎
Antibodies - A class of drugs used to kill or inhibit the growth of disease-causing microorganisms. Typically antibiotics are used to treat infections caused by bacteria, but in some cases they are also used against other microorganisms, such as fungi and protozoa.⏎
Chromosome - An organized structure of DNA and proteins within the nucleus of a cell that contains many genes.⏎
Biological Agent (Terrorism) - A bacterium, virus, or other biological toxin used in bioterrorism or biological warfare.⏎