这个是最新官方说法。摘录如下:7 r" ?" u5 D3 ]/ _( ], J
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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: 6 u' q5 L# f6 A ' ~/ f8 m/ \3 q8 k Q5 x- Children between six months and under three years old should still receive two half-doses of adjuvanted H1N1 vaccine, at least 21 days apart. * O# ~5 p/ E5 c, z 6 L& Y4 M. _: y# D U P8 c7 _/ t- 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. * Y9 ^: @' U' e7 W n* i5 G
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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.
& Y" X% q0 G( n) V+ \! v6 y; vThe Public Health Agency of Canada (Nov 12, 2009) recommends: 8 `/ k+ e1 C! a' a" C. R 8 ^" d- j9 {' @# V' K * 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. 8 t0 S" A/ F- s( n * Healthy children with no chronic health problems aged three years to under 10 years should receive one half dose of the H1N1 adjuvanted vaccine.) [$ c* V; l9 |' ^6 B6 }
* 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.! N% ~; k2 D* D! d& x
* All children aged 10 years and older should receive one full dose adjuvanted vaccine.