Children under 10 years of age need two doses of H1N1 vaccine

According to US vaccine manufacturer Sanofi Pasteur, children under 10 years of age may need two doses of H1N1 flu vaccine to be fully protected.

US Federal officials also agree with this: ' Two doses of H1N1 vaccine will be suitable to create immunity for children in this age group, ' said Dr. Anthony Fauci, Director of the Research Institute for Allergies and National infectious US said.

For younger children, protection from a vaccination vaccine is ' moderate but not enough to promote optimal prophylaxis ', he stressed.

Sanofi is the only company licensed in the United States to produce flu vaccine for children aged 6 months.

The firm concluded that results from a US clinical trial with H1N1 vaccine for children aged 6 months - 9 years showed that one dose could protect many children but ' two doses of vaccine would need to be Optimal protection '.

Previous research results from many A / H1N1 flu vaccines from many manufacturing companies show that a dose is enough to protect adult health.

Clinical trial session was conducted with 474 children. However, only 50% of children aged 6-35 months have adequate protection after one dose, while 76% of children aged 3-9 years are protected. For adults, up to 98% of the body's response to foreign substances is quite good after just one dose of vaccine.

There are about 25 global companies producing H1N1 vaccines.

The US has ordered 195 million doses of vaccine from five pharmaceutical companies: GlaxoSmithKline, Sanofi, Australia's CSL, MedImmune and Novartis. With new orders from Sanofi and MedImmune, the number of vaccines is up to more than 250 million doses.

The US Centers for Disease Control and Prevention has launched a plan to vaccinate about 160 million first doses of vaccine for high-risk groups of pregnant women, people with chronic diseases (heart disease, asthma and urinary diseases). road) with school-age children.