At risk groups include the over-65s, pregnant women, people with weakened immune systems and other health conditions.
Currently it is estimated that only around half of those at risk groups are taking up the vaccine.
He said early evidence had suggested up-take was not higher than previous years and there should have been enough doses for all the at risk groups.
"In the meantime, for the forthcoming flu season, our priority remains to ensure a high uptake rate is achieved in the at risk groups including pregnant women, " he added.
Studies like the one one on chlamydia and gonorrhea will hopefully help flesh out the interaction between internet hook-ups and health risks so that we can better target at risk groups for preventative education.
They called on the assembly government to address these problems by developing an action plan to reduce excess winter deaths and also suggested putting a comprehensive plan in place to ensure that at risk groups receive the flu vaccine.
The Department of Health in England tries to relieve the pressure by offering flu vaccinations to the most at risk groups, while local government is given money to try to help those most at risk of the cold weather.
The HPA said the figures showed there was "room for improvement" in testing people in at-risk groups.
He said anyone in at-risk groups such as that should seek vaccination which he described as "safe and effective".
Profits from the event, in its 31st year, will aid young people, at-risk groups and people with special needs.
Children in at-risk groups, such as those with asthma, heart conditions or cerebral palsy, are already eligible to receive the vaccine from their GP.
Last year the National Institute for Health and Clinical Excellence (NICE) recommended a co-ordinated screening programme to detect latent TB among the most at risk migrant groups.
Flu is generally just means taking time off work for most people but certain at-risk groups are prone to developing potentially fatal complications, such as bronchitis and pneumonia.
The DoH has therefore launched a campaign to encourage at-risk groups to get vaccinated and a new website, called Winterwatch, will be launched later this month to provide winter-related health data.
However, most of the numbers cited about the numbers of jobs at risk come from industry groups with a vested interest in making the cuts look as bad as possible.
Children and young adults up to age 24 are one of the groups at high risk for severe complications of the H1N1 flu.
Scientists say it isn't clear whether the drug will work for all groups at high risk of infection because the virus enters the body in different ways in each case.
They also believe asylum seekers feel less at risk from local people in groups - although there is anecdotal evidence to suggest that seeing groups of young men "in packs" in fact increases the hostility of local people.
And that's not the only modern first for the NHS. This winter the NHS will be the world's first health service - indeed the world's only - health service capable of providing the new meningitis vaccine to the groups most at risk.
Skills-based capacity building and training programs have helped to teach trades and vocational capabilities, and socio-educational organizations have emerged to help provide guidance and extra-curricular activities to individuals and children who may otherwise be at risk of recruitment into extremist groups, be that through lack of other options or economic coercion.
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Some racial and ethnic groups are at higher risk of developing Type 2 diabetes.
Still, the health department recommended that children younger than 6 and pregnant women stop eating venison shot with lead bullets because those groups are at particular risk for lead poisoning, even at low levels.
Ultimately, what we need is a study that randomizes people at high risk of developing diabetes into four groups.
According to advocacy groups, the Senate version of the Violence Against Women Act approved Tuesday strengthens protections of particular groups of women at particular risk.
The agencies say lives will be put at risk but the government insists the aid groups all have political agendas and are using their humanitarian activities as cover.
The UN earlier warned the country's reform programme could be put at risk by continued communal violence between local groups of vigilante Buddhists and Muslim Rohingyas in the western state.
Both groups seem to be at increased risk of suicidal thoughts and behaviors.
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Eighty percent of patients did not fall into the groups and were at considerably lower risk of serious bleeding.
The administration is hoping to help two major groups of homeowners who are at risk of losing their homes.
The List of Intangible Cultural Heritage in Need of Urgent Safeguarding is a list of cultural elements whose viability is at risk despite the efforts of the communities and groups that practice them.
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