A Microscopic Zoo
Under the microscope, a gram of dog feces is a thriving ecosystem of bacteria, viruses, parasites, and fungi. As a microbiologist, I find it fascinating from a scientific perspective — and deeply concerning from a public health one.
Bacterial Populations
23M+
Total Bacteria
Per gram of dog feces
400+
Bacterial Species
Identified in canine gut
65+
Pathogenic Species
That can infect humans
Key Pathogens and Their Risks
| Pathogen | Type | Human Disease |
|---|---|---|
| E. coli O157:H7 | Bacteria | Hemorrhagic colitis, kidney failure |
| Salmonella spp. | Bacteria | Gastroenteritis, septicemia |
| Campylobacter | Bacteria | Diarrhea, Guillain-Barre syndrome |
| Leptospira | Bacteria | Leptospirosis (liver/kidney damage) |
| Toxocara canis | Parasite | Visceral larva migrans (organ damage) |
| Ancylostoma caninum | Parasite | Cutaneous larva migrans (skin) |
| Giardia duodenalis | Protozoa | Giardiasis (severe diarrhea) |
| Cryptosporidium | Protozoa | Cryptosporidiosis (watery diarrhea) |
Survival Outside the Host
Many of these organisms survive in soil, on surfaces, and in water for weeks to years after the visible waste has decomposed.
Warning
Antibiotic-resistant bacteria have been found in dog feces at increasing rates. Dog waste is a reservoir for antibiotic resistance genes that can transfer to human pathogens.
Remove the Source
Every pile removed is billions of pathogens prevented from entering the environment. Clean Paws professional service is, at its core, a public health intervention.