There are many trillions of microbial organisms,  including fungi, bacteria and viruses, living in and on our bodies, outnumbering our own cells 3 to 1. We have battled them for years, with antibiotics and disinfectants. But as we get to know them better, a lot turn out to be our allies, while others remain our constant enemies.

A microbiome is the community of micro-organisms living together in a particular habitat. Humans, animals and plants have their own unique microbiomes, but so do soils, oceans and even everyday objects.

HIV 3
athletes foot fungus
bacteria from a mobile phone
bird flu
Breast milk bacteria
cells from the mouth with bacteria
dishcloth bacteria
e. coli bacteria from a fridge
fecal bacteria
fecal bacteria 2
helicobacter
HIV
lactobacillus casei
marine bacteria
megaterium
molluscum contagiosum virus
mouth bacteria
nasal bacteria
newborn baby fecal bacteria
oral bacteria
probiotic yeast and bacteria
saccharomyces yeast
sepsis-bacteria and red blood cells
Simian Immunodeficiency Virus (SIV)
skin bacteria
soil bacteria
swine flu
tongue bacteria