这个是最新官方说法。摘录如下:8 L9 Y( X, q, R1 y
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Not all children will get away with only one shot, however. The Public Health Agency's revised guidelines are as follows: 1 ]6 J; Q* f0 s) S m
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- Children between six months and under three years old should still receive two half-doses of adjuvanted H1N1 vaccine, at least 21 days apart. 3 l+ ^( e Q" z [ ( _7 d$ A# W( d' `/ i7 x$ }; ^- Children between three years and nine years old with chronic health conditions should get their first half-dose as quickly as possible. They should get a second half-dose at least 21 days later. 1 u# p' C4 R; b! e ?9 n# d
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- Healthy kids between three years and nine years old should only receive a half-dose of H1N1 vaccine. They don't need to come back for a second shot.
. D |1 J. }6 E* |1 qWill children need one or two vaccines? % k7 y) {) N% e" I ! E: m* W) n8 E; S5 H. |& QThe Public Health Agency of Canada (Nov 12, 2009) recommends:! q J" j% `( g0 N( A
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* Children from six months up to and less than three years old receive two half-doses of the H1N1 adjuvanted vaccine. There should be a minimum of 21 days between the two half doses. 2 N' T r1 `( \* i3 Y8 T' | * Healthy children with no chronic health problems aged three years to under 10 years should receive one half dose of the H1N1 adjuvanted vaccine.$ O! v, w! z: R+ ]2 a; N8 M
* Children aged three to under 10 years with chronic medical conditions should receive two half doses of adjuvanted H1N1 vaccine. There should be a minimum of 21 days between the two half doses.7 x; L) `6 ^. e- _, P
* All children aged 10 years and older should receive one full dose adjuvanted vaccine.