这个是最新官方说法。摘录如下: 1 C' z+ }- Y2 N& Y- B/ Y b$ o7 x + d% b: X, H) i$ O* B) Z4 T/ bNot all children will get away with only one shot, however. The Public Health Agency's revised guidelines are as follows: : Z+ F& s* D" ~$ D! ]' \ * d' N& b# _% E, Z1 B- Children between six months and under three years old should still receive two half-doses of adjuvanted H1N1 vaccine, at least 21 days apart. % d/ k' G- \& Q% Y- _/ p/ j 5 r8 C0 h1 b$ N* p$ ?+ H1 u- 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. : U0 e0 S; T- f+ m- n7 U* ^. K5 \" ~
* o& M4 ^( H2 L% ^' l0 L- 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.
alberta health 的说法 8 j) w N) i7 o- A4 _ http://www.albertahealthservices.ca/901.asp#children y# c. }/ H+ R7 V0 v- g1 S( c
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Will children need one or two vaccines?6 _# ?9 J& O9 W& _9 D
L8 y( h4 T. z: l/ [The Public Health Agency of Canada (Nov 12, 2009) recommends:2 b G! r) F( Q1 F, ~2 N) T
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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.% g3 A9 }6 K$ S6 J7 j# X! k7 E: J
* Healthy children with no chronic health problems aged three years to under 10 years should receive one half dose of the H1N1 adjuvanted vaccine.) i4 h8 h! W0 y+ M3 p/ Z
* 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. 1 C& E3 N2 n$ u * All children aged 10 years and older should receive one full dose adjuvanted vaccine.