The protection of hepatitis vaccine period how long to have?

- 30 old epidemiology of foreign observe the result shows, this world of the antibody after vaccine of hemp cheek wind is vaccinal turns rate all be in 95% above, antibody is protected continuously amount to 11 years of above. - World Health Organization thinks, without the cell the antibody duration of 100 white broken vaccine is 100 white broken vaccine, complete cell 6 years commonly ~12 year. - the second head vaccine that uses domestic and internationally at present has shrewmouse kidney cell to destroy cell of kidney of live vaccine, shrewmouse decreases poisonous live vaccine vaccinal. The data shows, former course two needles (agent) second foundation immunity and 3 needles (agent) second after strengthening immunity, immune effect tenability latter of 10 years of; is vaccinal two needles (agent) second, immune effect can last 5 years ~11 year. - the armour liver vaccine that our country is using has the work that reduce toxin vaccine and destroy live vaccine, rate of the protection after both have an inoculation all is in 87% above. Observe the data shows, former protection period already amounted to latter of 15 years of; to observe protective period is 5 years actually, average geometry drop spends the antibody after 5 years for 326miu/ml, according to counting manage formula to figure its are protected period can amount to 20 years. - the observation that the learned man's normal to immune function adult has had effect of second liver vaccine, discovery is in 8 years after have an inoculation, antibody of this kind of protection still exists inside the human body of 85% . Additionally the scholar undertakes investigating to the children of vaccine of vaccinal second liver, positive of antibody of the surface after discovering 5 years is led for 71.37% , positive rate is after 9 years 51.34% . Strengthen immunity as to what whether need or have second liver vaccine, the research of this respect still is continueing. (the exercitation edits: Plum apricot)