Capsid protein
VP1 shapes the shell that antibodies see and that genotypes differ by.
Particles that survive a stomach reach the small bowel. Illness can begin within a day or so.
Shedding in stool can outlast the worst symptoms. That is why return-to-work rules exist in kitchens.
Parts
RNA genome
A small positive-sense genome copies sloppily enough to keep diversity coming.
Gut target
Enterocytes are the usual classroom. Vomiting is an efficient exit.
Environmental grit
Particles can linger on rails and carpets after a visible clean-up.
HBGA binding
Some strains bind histo-blood group sugars — a research detail that explains uneven risk.
Short memory
Antibody after one genotype may fade or miss the next.
Life cycle
1Ingest few particles
Hands, oysters, salads or a contaminated room can deliver a tiny dose.
2Gut illness
Vomiting and diarrhea start abruptly for many people.
3Room contamination
Aerosolized vomit and unwashed hands seed surfaces.
4Next host
A classmate or cabin neighbor repeats the cycle within a day or two.
No culture or isolation protocol is given. Human norovirus is historically hard to grow — and this page will not try.
Keep exploring
More in Encounters
Influenza
A winter respiratory virus of drift and rare shift — surveillance and vaccines, not a cartoon villain.
Familiarity 93Tuberculosis
An airborne bacillus of latency and long care — programmes and air, not a drug recipe.
Familiarity 70Escherichia coli
Usually a gut resident; a minority of STEC pathotypes drive foodborne headlines.
Familiarity 82Staphylococcus aureus
A common skin neighbor and a resistance story called MRSA — not scare porn.
Familiarity 78Helicobacter pylori
A gastric spiral that rewrote the ulcer textbook — Nobel 2005, Korea's high historic prevalence, no recipes.
Familiarity 68