17 February, 2015
How Measles Attacks | Motherboard
How Measles Attacks | Motherboard: The "secondary attack rate" for people exposed to the virus is upwards of 90 percent. To put that into perspective, the secondary attack rate for the flu is between 10 and 20 percent and around 3 percent for full-blown tuberculosis, while the risk of HIV transmission is roughly around 1 percent per exposure (a rough average of exposure types). Using the r_0 value for measles—how many secondary infections are likely to result from a primary infection—it's about the most infectious thing going with a value of 18. HIV is down at 4 infections per primary and the mumps comes in closest at 10.