Definition of Lansing virus
Lansing virus: Type 2 poliovirus. Named after the city in Michigan where the first patient lived who was found to have this virus. There are two other strains of poliovirus: Type 1 (known as the Brunhilde virus) and Type 3 (known as the Leon virus). Immunity to one strain does not provide protection against the other two. All three strains are therefore included in the poliovirus vaccine.
Last Editorial Review: 6/14/2012
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