TREATMENT:The US government expects to have flu vaccines ready for both the new strain of the H1N1 virus and seasonal flu by autumn, health and human services secretary Kathleen Sebelius said yesterday.
Ms Sebelius said the government was accelerating production of vaccine against seasonal flu, which is expected to infect millions of Americans.
"At the same time, we're growing the virus and testing the virus to attack H1N1, and we'll be production-ready when it's time to go," she said on NBC's Meet the Press. "So we'll be ready for both," she said. "We're going to be ready for both, come Fall."
The World Health Organisation (WHO) and US Centres for Disease Control and Prevention (CDC) are trying to decide whether to add the new H1N1 strain to the seasonal flu vaccine for the northern hemisphere for delivery starting in September.
Companies are already making a vaccine for autumn this year with a mixture of three influenza viruses chosen before the new strain broke out.
“What hasn’t been determined yet – and it will be determined by the scientists – is whether or not vaccine production for H1N1 makes sense, whether we really do want to do full-scale production,” Ms Sebelius told Fox television.
They have four choices – leaving the new strain out of the mix altogether, replacing the current H1N1 component with the new H1N1 strain, offering a separate swine H1N1 vaccine, or making it a so-called quadrivalent vaccine that includes the new swine H1N1, the circulating seasonal H1N1, the H3N2 component and the influenza B strain.
It takes months to formulate influenza vaccines and they must be made freshly every year with new strains of the constantly mutating virus. More than a dozen vaccine manufacturers have licences to produce influenza vaccines. The CDC and WHO make samples of virus available to commercial manufacturers, who then make vaccines.
“It’s too early to manufacture anything,” Ms Sebelius told Fox.
“What they need to do right now with this H1N1 virus is to test it, is to make sure they’ve got the right antidote to this particular viral strain, to make sure we have the right dosage, and then make a decision based on the science of what we know whether or not full-scale vaccine production [is required].” – (Reuters)