China set to provide first swine flu vaccines

China has developed a vaccine for swine flu and is set to become the first country in the world to begin mass inoculations, but there are concerns over possible side effects, the World Health Organization (WHO) has said. WHO spokesman Gregory Hartl told CNN, “We have to be ready for the fact that there might be adverse effects.” “No matter what vaccine you’re looking at, sometimes there are extremely rare side effects.