Letter L

Leon virus

Type 3 poliovirus.

Named after the patient in California from whom this virus was first isolated.

There are two other strains of poliovirus: Type 1 (known as the Brunhilde virus) and Type 2 (known as the Lansing virus).

Immunity to one strain does not provide protection against the other two.

All three strains are therefore included in the poliovirus vaccine

Medical disclaimer

The information on this page is for educational and informational purposes only and does not constitute medical advice in any way.

It does not replace the advice of a physician, pharmacist or other healthcare professional.
It does not represent a prescription of drugs, diagnostic exams or therapies.
In case of symptoms, doubts or concerns about your health, always consult a qualified physician.

In case of emergency call 911 (US) or 112 (EU).