In a city that has been hard hit by the flu, Boston schools have gone largely unscathed so far, avoiding major outbreaks of the disease despite children’s greater natural tendency to get the disease, school officials said.

Mayor Thomas M. Menino declared a state of emergency in Boston last week, with 700 confirmed cases of the flu in the city, 10 times more than last year. Although there have been more flu cases in city schools this year, the virus has been well contained and hasn’t disrupted classes, Boston Public Schools spokesman Matt Wilder said.