Shingles on the Rise in California, Other States

Experts say there has been an increase in cases of herpes zoster, or shingles, in California and other states since the 1990s. The illness is on the rise among most age groups -- not just individuals over age 60, who are the most vulnerable to the virus -- even though a vaccine was introduced in 2006 to inoculate against the virus.

• "Shingles Cases on the Rise in Sacramento and Nationwide Despite Vaccine" (Cameron/Reddick, Sacramento Bee, 7/14).