View report page

56
incidence remaining high till the end of the year. This high incidence
carried over into 1936, but dropped towards the end of
March and remained at a comparatively low level until the end of
November, when there was a transitory rise.
Mumps occurred in a series of waves from 1924 to 1928
inclusive, but was not at all prevalent in 1929. In 1930, however,
a rather severe incidence was noted throughout the first half
of the year. In 1931 there was an irregular and gradual decline
thoughout the year, and in 1932 the incidence was very low. The
very low incidence of Mumps continued during 1933 and until
November, 1934; a rise then commenced and continued during
December, indicating the onset of a major incidence in 1935.
The waves showed their maxima in March, 1924; May, 1925;
March, 1926; May, 1927; March, 1928 and May, 1930, and their
minima in September, 1924; September, 1925; September, 1926;
and September, 1927. The major incidence foretold in 1934,
occurred in 1935. The peak was reached in March, when the
high number of 317 cases during the week ending March 30th
was reached. The epidemic continued until the end of July. After
the schools summer holidays, the cases dropped very markedly,
and the rest of the year showed the usual low incidence. During
1936, Mumps incidence remained very low until the end of
November, when the cases rose slightlv and continued raised for
the remainder of the year.