Chickenpox vaccine contains attenuated live strains of herpes virus type 3
Herpes type 3 - causes chicken pox and shingles
- Varicella zoster virus, which causes chickenpox. The Russian pharmaceutical market there are two vaccines, good quality which does not leave any doubt. This vaccine Okavaks and Varilriks.
Chickenpox vaccine Okavaks
Okavaks - a vaccine against chickenpox, which produces Research Foundation for Infectious Diseases of Osaka University (Japan). It is produced as a lyophilisate (substance dried in a special way) for the preparation of a solution for subcutaneous injection (one dose of the vaccine - 0, 5 mL) which contains live attenuated varicella zoster virus Oka strain. Included is also a solvent for the preparation of the solution.
After the introduction of the vaccine activates specific humoral and cellular immunity, suppresses the replication of the virus varicella zoster, which prevents the development of disease. Sometimes the disease is still developing, but mild. Immunity after vaccination persists for many years.
The vaccine is administered for the prevention Okavaks disease chickenpox children after a year, adolescents and adults. Highly recommended the vaccine to people with weakened immune systems
Immunity - types and characteristics in children in adults
And a closed collectives (eg, the soldiers in the barracks). Recommended vaccinations are also women who are planning a pregnancy, but had not previously had chickenpox.
Vaccine and may be used for emergency prevention of chickenpox in the case where after exposure was not more than 72 hours. Emergency vaccination against chickenpox is considered effective as antibodies to infectious agents are starting to be produced immediately after vaccine administration (in the whole process of development of antibodies
Antibodies - "soldiers' immunity
It lasts about 1, 5 months).
Okavaks administered once subcutaneously in the upper third of the arm.
Contraindication to vaccination Okavaks are hypersensitivity, pregnancy, and expressed an immunity (immunodeficiency). Temporary contraindications to vaccination are fever, acute respiratory viral infection (depending on severity of the disease after it has to go from 2 to 4 weeks), meningitis and mentingoentsefality (after recovery should be at least six months), recurrence of any chronic disease (to remission).
The vaccine is administered with caution to patients with chronic diseases of the cardiovascular system, kidneys, liver, blood diseases
Diseases of the blood - always seriously
As well as people prone to seizures and allergic reactions.
Chickenpox vaccine Varilriks
The chickenpox vaccine Varilriks produces pharmaceutical company GlaxoSmithKline (Belgium). The vaccine also contains the varicella zoster virus, eye strain and produced as a lyophilisate for the preparation of a solution for subcutaneous administration in the form of powder or amorphous mass with the application of solvent (water for injection). One dose of the vaccine ready for use is 0 5 ml.
After the introduction of a vaccine specific immunity to varicella develops in 98% of children from one year to 12 years and lasts for at least seven years. Adolescents aged 13 after double vaccination developed specific immunity at all, without exception, and held at least a year. Specific post-vaccination immunity allows or completely prevent chickenpox disease after contact with sick or reduce almost to zero the risk of severe infection.
Varilriks The vaccine is administered subcutaneously once or twice, depending on the age: for children from one year to 13 years - single, older than 13 years - twice with an interval of 1, 5-2, 5 months.
Indications and contraindications for the vaccine Varilriks are the same as for the vaccine Okavaks.
Vaccination against chickenpox - is it worth doing?
Expert opinions on this matter differ. Some believe that vaccination should be carried out for all children, as well as women, people who have had chickenpox are not planning a pregnancy (conception when it should occur no earlier than 3 months after vaccination) and other adults at risk.
But many pediatricians are inclined to believe that children under 12 years old have had better chicken pox, which occurs in this age of easy. But it is a controversial statement, since according to statistics one in 10 patients (including children under 12) chickenpox runs hard, with complications.
Therefore, the issue of vaccination against chickenpox today decided to solve individually, depending on the general condition of the child, the state of his immunity and the presence of a child of certain diseases and conditions.
Vaccination against chickenpox can prevent the disease or significantly reduce the risk of severe infection.