How do I simulate a virus spread?

Open this page and use the live Hardy-Weinberg tool below — set your inputs and the simulation runs instantly in your browser using real numerics. No install, no account needed.

Yes. The simulation runs free in your browser. A one-time unlock or a Pro plan adds advanced parameters, saved presets, data import, and clean exports.

Can I use my own numbers?

Absolutely — every input is adjustable, and with data import you can drive a virus spread from your own measurements.

Use case · powered by Hardy-Weinberg

Hardy-Weinberg for a virus spread

Simulate a virus spread live in your browser. This runs the real Hardy-Weinberg solver — adjust the inputs, watch it respond instantly, and export the result. No install, no account.

For:Students Researchers Educators Engineers Hobbyists & Makers K-12 Students First Responders

Hardy-Weinberg & SelectionLive

population genetics

Controls

Presets

Initial freq of A (p₀)

Fitness AA

Fitness Aa

Fitness aa

Without selection, allele frequencies stay put and genotypes settle at p², 2pq, q² — Hardy-Weinberg equilibrium. Give the genotypes different fitness and selection shifts the allele frequency each generation. Heterozygote advantage (high Aa fitness) can hold both alleles in a stable balance.

▶ Run in Python

Data Inspector

Final freq A0.500

Outcomepolymorphic

Mean fitness0.95

Governing equation

p^{2} + 2 pq + q^{2} = 0.25 + 0.50 + 0.25 = 1 (p = 0.5, q = 0.50)

Reading this result: Allele A is favored at every genotype, so directional selection drives p toward 1 and eventually fixes A.

Runs locally in your browser — free forever. Scale to the cloud when reality gets heavy.

or unlock everything with Pro →

About this simulation

The full Hardy-Weinberg tool models a virus spread with the same numerics engineers and scientists use — running entirely client-side. Change any parameter and the result updates in real time, so you can build intuition, check a design, or teach the concept without spreadsheets or installs.

More you can do with Hardy-Weinberg

Hardy-Weinberg for a bacterial growth Hardy-Weinberg for a predator-prey cycle Hardy-Weinberg for a neuron firing Hardy-Weinberg for a heartbeat Hardy-Weinberg for a gene expression Hardy-Weinberg for a protein fold Hardy-Weinberg for a muscle contraction Hardy-Weinberg for a blood flow

Other ways to simulate a virus spread

Dynamical Systems for a virus spread Epidemic Network for a virus spread Spatial Predator–Prey for a virus spread SIR Epidemic for a virus spread Hodgkin-Huxley Neuron for a virus spread Lotka-Volterra for a virus spread

Frequently asked questions

How do I simulate a virus spread?: Open this page and use the live Hardy-Weinberg tool below — set your inputs and the simulation runs instantly in your browser using real numerics. No install, no account needed.
Is it free?: Yes. The simulation runs free in your browser. A one-time unlock or a Pro plan adds advanced parameters, saved presets, data import, and clean exports.
Can I use my own numbers?: Absolutely — every input is adjustable, and with data import you can drive a virus spread from your own measurements.