"Health officials in South Carolina are warning that the highly infectious measles virus is spreading undetected in communities in the northern part of the state, specifically Spartanburg and Greenville counties. Last week, officials in Greenville identified an eighth measles case that is potentially linked to the outbreak. Seven outbreak cases had been confirmed since September 25 in neighboring Spartanburg, where transmission was identified in two schools: Fairforest Elementary and Global Academy, a public charter school."
"The two recommended doses of the measles, mumps, and rubella (MMR) vaccine are about 97 percent effective at blocking the infection, and that protection is considered lifelong. Without that protection, the virus is extremely contagious, infecting 90 percent of unvaccinated people who are exposed. The virus spreads easily through the air, lingering in the airspace of a room for up to two hours after an infected person has left."
An eighth measles case was identified in Greenville, potentially linked to an outbreak centered in neighboring Spartanburg where seven cases were confirmed since September 25. Transmission was identified in two schools, Fairforest Elementary and Global Academy, exposing at least 153 unvaccinated children who were placed in a 21-day quarantine and barred from attending school. The 21-day period represents the maximum incubation interval between exposure and rash development. The two recommended MMR vaccine doses are about 97 percent effective and provide lifelong protection. Measles infects roughly 90 percent of unvaccinated exposed people and can linger in a room's airspace for up to two hours.
Read at Ars Technica
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