the.com/pathogens
Tiny freeloaders that crash your body, raid the fridge, and leave you feverish.
means Microorganisms — bacteria, viruses, fungi, parasites — that cause disease in their host.
from From Greek pathos, suffering, plus genes, born of — literally the begetters of suffering, named for what they leave behind.
Minority reportMost microbes are harmless or helpful, not pathogens.
Size rangeViruses dwarfed by bacteria, which dwarf parasites.
Body countSmallpox alone killed roughly 300 million in the 1900s.