[2010 May] Opinion: Unnecessary injection of risk: vaccination  Overall, 25 per cent of children receiving the 15 microgram vaccine dose developed a fever and 41 per cent of those who received the 30mcg dose got a fever......I remain surprised that a vaccine that produces fever in such a high proportion of children, especially those under three, was allowed to be used in Australia without explicit warnings to parents and without any formal, prospective, post-marketing surveillance to look at this issue in large numbers of children.