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🤒 Coxsackievirus Transmission & Rash Distribution Simulator

A model demonstrating the fecal-oral and respiratory routes of Coxsackievirus transmission, along with the typical distribution of rash on hands, feet, and in the oral cavity.

Hand-Foot-Mouth Disease & Childhood Rash Illnesses2DModerate60 FPS

Fecal-Oral Spread of Coxsackievirus

Placeholder: contaminated hands and surfaces carry virus to the mouth.

Daycare: Primary setting (Placeholder short note)
Weeks: Shedding duration (Placeholder short note)
High: Hand hygiene effect (Placeholder short note)
Summer/Fall: Peak season (Placeholder short note)

Route mechanics

Placeholder: stool-to-hand-to-mouth cycle drives community spread.

Placeholder: handwashing sharply cuts transmission chains.

Respiratory Droplet Spread

Placeholder: coughs and sneezes disperse infectious droplets nearby.

~1-2 m: Droplet range (Placeholder short note)
Hours: Airborne survival (Placeholder short note)
Early days: Contagious window (Placeholder short note)
Moderate: Mask benefit (Placeholder short note)

Route mechanics

Placeholder: oral/nasal secretions carry virus during acute illness.

Placeholder: crowded indoor settings raise droplet exposure risk.

Viral Replication in the Gut

Placeholder: virus multiplies in lymphoid tissue of the intestine.

3-6 days: Incubation period (Placeholder short note)
Peyer patches: Replication site (Placeholder short note)
Day 2-3: Viremia onset (Placeholder short note)
Week 1-2: Shedding peak (Placeholder short note)

Replication dynamics

Placeholder: enterovirus amplifies before spreading systemically.

Placeholder: viremia precedes visible skin and mouth lesions.

Vesicular Rash on Hands and Feet

Placeholder: small tender blisters appear on palms and soles.

3-7 mm: Typical lesion size (Placeholder short note)
Palms/soles: Distribution (Placeholder short note)
~7-10 days: Duration (Placeholder short note)
Mild-moderate: Pain level (Placeholder short note)

Rash pattern

Placeholder: lesions cluster on acral skin, sparing the trunk.

Placeholder: palm/sole distribution is a classic diagnostic clue.

Oral Vesicles and Ulcers

Placeholder: painful ulcers develop on tongue and inside cheeks.

Tongue/gums: Common sites (Placeholder short note)
Often first: Onset vs skin rash (Placeholder short note)
Reduced intake: Feeding impact (Placeholder short note)
~1 week: Healing time (Placeholder short note)

Oral distribution

Placeholder: shallow ulcers cause pain and drooling in children.

Placeholder: oral pain often precedes hand-foot skin findings.

⚙ Under the hood

A model demonstrating the fecal-oral and respiratory routes of Coxsackievirus transmission, along with the typical distribution of rash on hands, feet, and in the oral cavity.

CanvasBiomedicine

2D · HTML5 Canvas 2D · 60 FPS target · runs fully client-side, no install