One dose of varicella vaccine does not prevent school outbreaks: is it time for a second dose?
Lopez AS, Guris D, Zimmerman L, Gladden L, Moore T, Haselow DT, Loparev VN, Schmid DS, Jumaan AO, Snow SL. One dose of varicella vaccine does not prevent school outbreaks: is it time for a second dose? Pediatrics. 2006 Jun; 117(6):e1070-7.