Transmission

Lice spread easily from one head to another when there is hair contact, such as when two people hug. However, it is harder to spread through contact with objects such as hats, combs, hairbrushes, glasses, bed linens, pillowcases, sofa covers or carpets.

Lice do not live on pets, they only feed on human blood. Pets therefore, do not play a role in spreading lice.