Gene/Protein Disease Symptom Drug Enzyme Compound
Pivot Concepts:   Target Concepts:
Query: UMLS:C0019163 (hepatitis B)
 38,309 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Increasing numbers of immigrants from the former Soviet Union are settling in the United States each year, making it imperative for clinicians to know how to find and interpret immigrant children's immunization records. Records show that these children have usually received immunizations against tetanus, diphtheria, pertussis, poliomyelitis, measles, mumps and tuberculosis (BCG). They are occasionally vaccinated against influenza, smallpox and tularemia, but never against rubella, hepatitis B or H. influenzae meningitis. The Soviet immunization schedule differs significantly from the U.S. schedule only in BCG vaccine and polio immunization. Contrary to widespread belief in the United States, BCG vaccination does not necessarily render a child's tuberculin skin test positive, and it certainly does not confer total immunity to tuberculosis. MMR vaccination is essential for all Soviet immigrant children. A single update of all the other immunizations may be a wise approach when handling Soviet children's immunizations.
 ...
PMID:Clinical management of immigrants' immunization histories: a focus on Soviet health records and BCG. 157 76

In developing countries, where economic development is lacking and literacy rates are low, priority must be given to primary health care and to the establishmend of sustainable health care delivery systems. The World Health Organization's Expanded Program of Immunization was designed with the goal of immunizing all children against measles, pertussis, tetanus, poliomyelitis, tuberculosis, and diphtheria by 1990. A second function of the immunization program is to establish a health care delivery system. Today 50% of infants receive 3 doses of diptheria/pertussis/tetanus and polio vaccines, and 70% receive at least 1 dose. Measles kills 2 million children every year. The standard strain of attenuated vaccine is given at 9 months, and 1 dose protects 95% of children for life. Tetanus kills 800,000 infants every year. The vaccine must be refrigerated, and 2 doses are essential. Tuberculosis kills 2 million children under 5 every year. The attenuated BCG vaccine should be given at birth, and a single dose confers some protection. Diphtheria is most common among poor, urban children in termperate climates, and 3 doses of toxoid at monthly intervals are recommended. Poliomyelitis paralyzes 250,000 children a year. 4 doses of live attenuated Sabin vaccine are recommended. The vaccine is very sensitive to heat. Other vaccines in use or being developed include yellow fever, meningococcus, Japanese B encephalitis, rubella, hepatitis B, cholera, rotavirus, pneumonococcus, and Haemophilus influezae. 2 problems that confront the delivery of health services, including immunization, are lack of funds and lack of access to susceptible populations. Approaches to the lack of funds problem include fee for service, taxation, beter management of existing resources, reallocation of health resources, and increased funding from donor nations. Approaches to the problem of access include vaccination whenever children come into contact with a health facility for any reason, channeling by members of the community, involvement of traditional healers and birth attendants, outreach services, mass campaigns, pulse technics, and financial incentives.
 ...
PMID:Vaccination strategies in developing countries. 305 59

Five HBsAg carriers were examined by clinical, biochemical, radionuclide, immunologic and histomorphologic methods. Different variants of structural and functional relations were established. Attempts were made to eradicate the persistent virus carrierstate with the aid of the antiviral drug virasol, the immunomodulating drug levamisole, nonspecific (BCG vaccine) and specific (original corpuscular vaccine against hepatitis B) immunostimulants. No positive therapeutic effect was obtained. The difficulties and possibilities of a further study into the title problem with due regard for integration mechanisms of infection and prospects of the effective prophylaxis of virus transmission from the mother to the child at birth are discussed.
 ...
PMID:[Possibilities of eradicating the persistent HBsAg carrier state]. 652

Many infections that occur at the extremes of age are preventable by active or passive immunization. The immune response to vaccines in neonates and the elderly may be diminished when compared with other age groups, however this is usually outweighed by the benefits of providing protection at the age when the need is greatest. Immunoprophylactic agents used at birth include BCG vaccine, oral polio vaccine, varicella-zoster immunoglobulin and hepatitis B vaccine and immunoglobulin. In the elderly, influenza, pneumococcal and tetanus vaccines are often indicated, although the uptake in this age group is poor in comparison with neonates.
 ...
PMID:Immunoprophylaxis at extremes of age. 784 68

There are 23 countries/areas in this Region (Tables 1-3). BCG is used in all but 3 countries (Cyprus, Jordan and Lebanon). Most countries/areas give BCG vaccine at birth, 2 countries (Bahrain and Tunisia) schedule additional doses at school age and Kuwait uses 1 dose at the age of 3 1/2-4 years. Diphtheria-pertussis-tetanus (DPT) vaccine is used as a primary series of 3 doses in all countries/areas. Fifteen countries/areas use a fourth dose of DPT vaccine in the second year of age or later (Bahrain, Cyprus, Egypt, Iran [Islamic Republic of], Jordan, Kuwait, Lebanon, Libyan Arab Jamahiriya, Oman, Qatar, Saudi Arabia, Syrian Arab Republic, Tunisia, and the United Arab Emirates, the United Nations Relief and Works Agency for Palestine Refugees in the Near East [UNRWA]). Six countries use 5 doses of DPT vaccine, the fifth dose being given at the age of 4-6 years (Bahrain, Cyprus, Iran [Islamic Republic of], Kuwait, Qatar, and Saudi Arabia). One or 2 booster doses of diphtheria-tetanus (DT) vaccine are used in 9 countries/areas from the age of 6-12 years. Td vaccine is used as a booster in Bahrain and Cyprus. Oral poliovirus vaccine (OPV) is used in a primary series of 3 doses simultaneously with DPT vaccine in all countries/areas. Ten countries/areas use an additional dose of OPV at birth (Djibouti, Iran [Islamic Republic of], Iraq, Kuwait, Libyan Arab Jamahiriya, Morocco, Oman, Pakistan, Syrian Arab Republic, and UNRWA). An additional dose of OPV in the second year of life is used in 15 countries, and additional doses of OPV are recommended in some countries. In UNRWA, the first 2 doses of OPV 2 and 3 months of age are given simultaneously with the inactivated poliovirus vaccine (IPV). Measles vaccine is given in most countries/areas at 9-12 months of age, usually in the form of monovalent measles vaccine. The 2-dose policy is implemented in 12 countries. In 8 countries, the second dose is given as measles-mumps-rubella (MMR) vaccine, and in 3 countries as monovalent measles vaccine. The age for the second dose varies. In 10 countries, it is given at 12-15 months of age, and in the Libyan Arab Jamahiriya at 18 months of age. The United Arab Emirates uses 3 doses. Rubella vaccine is scheduled for girls of 12-13 years of age in Bahrain, the United Arab Emirates and UNRWA and for boys and girls in Kuwait at 12 years of age. Hepatitis B vaccine is used in 15 countries/areas. All these countries use 3 primary doses of vaccine in infancy. The immunization time varies from birth (12 countries/areas) to 9 months of age. In Cyprus, hepatitis B vaccine is used in a 4-dose schedule, including a booster dose given to 5 to 6-year-old children. Tetanus toxoid is used for pregnant or non-pregnant women of childbearing age. It is also given to school-children in the Islamic Republic of Iran. The schedule includes 2-5 doses.
 ...
PMID:Expanded programme on immunization (EPI). Immunization schedules in the WHO eastern Mediterranean region, 1995. 869 38

Infant immunization is the most cost-effective strategy to prevent infectious diseases in childhood, but is limited by immaturity of the immune system. To define strategies to improve vaccine immunogenicity in early life, the role of genetic and environmental factors in the control of vaccine responses in infant twins was studied. Immune responses to BCG, polio, hepatitis B, diphtheria, pertussis and tetanus vaccines were measured at 5 months of age in 207 Gambian twin pairs recruited at birth. Intrapair correlations for monozygous and dizygous pairs were compared to estimate the environmental and genetic components of variation in responses. High heritability was observed for antibody (Ab) responses to hepatitis B (77%), oral polio (60%), tetanus (44%) and diphtheria (49%) vaccines. Significant heritability was also observed for interferon-gamma and interleukin-13 responses to tetanus, pertussis and some BCG vaccine antigens (39-65%). Non-HLA genes played a dominant role in responses to Ab-inducing vaccines, whereas responses to BCG were predominantly controlled by genes within the HLA class II locus. Genetic factors, particularly non-HLA genes, significantly modulate immune responses to infant vaccination. The identification of the specific genes involved will provide new targets for the development of vaccines and adjuvants for young infants that work independently of HLA.
 ...
PMID:Genetic regulation of immune responses to vaccines in early life. 1473 96

Cell-mediated immune responses to BCG vaccine were evaluated in 7-month-old infants vaccinated with intradermal combined BCG and Hepatitis B or intradermal BCG and intramuscular Hepatitis B at birth. Peripheral blood mononuclear cell cultures from both groups showed CD4(+), CD8(+) and remarkable gammadelta(+) T cell BCG-specific proliferation, without significant differences. Also, IL-10, IL-12, IFN-gamma and TNF-alpha concentrations in culture supernatants, measured by ELISA, were similar. The results suggested that the combined BCG and Hepatitis B vaccine was as immunogenic as BCG separated from Hepatitis B vaccine.
 ...
PMID:Robust gammadelta+ T cell expansion in infants immunized at birth with BCG vaccine. 1764 59

Each year hundreds of thousands of children leave France to travel to developing countries where they are exposed to infectious agents that can be prevented by vaccination. During the child's pre-travel check-up, practitioners should check that all mandatory immunizations are up-to-date and provide advice on relevant vaccines in function of the epidemiological situation at the chosen destination. However various factors hinder full compliance with this approach and some vaccines are underused. Underused vaccines are referred to as neglected vaccines. In the French vaccination schedule three vaccinations can be considered as neglected. The first is the hepatitis B vaccine that has a low coverage level in France due to strong reluctance to its use despite the fact that the virus is widespread in tropical areas. The second is pneumococcal vaccine that should be administered to all infants less than 2 years of age, especially for travel to areas where pneumonia and meningitis are frequent. The third is BCG vaccine that is now at greater risk of being neglected in child travellers because its use has been downgraded from a general requirement to a recommendation only for children at risk. A serious limitation on the use of travel vaccinations is cost that can lead families to neglect some infectious risk such as hepatitis A that is a major risk for child travellers as well as for their relatives during or after the trip and typhoid fever that is essentially an imported disease. Rabies vaccine is also underused due to its cost and to poor understanding of the risk by many practitioners and families. The purpose of this article is to underline the need to improve information and access to vaccines that are all too often neglected in child travellers.
 ...
PMID:[Immunization for children travelling to the tropics: neglected vaccines]. 1868 11

The aim of this study was to evaluate existing policies regarding recommended and mandatory occupational vaccinations for health-care workers (HCWs) in Europe. A standardized questionnaire was sent to experts in Infection Control or Occupational Health in all 27 European Union Member States, as well as Norway, Russia, and Switzerland. All 30 countries have established policies about HCW vaccination against vaccine-preventable diseases. However significant gaps and considerable country-to-country variation were found, in terms of number of recommended vaccines and target subgroups of HCWs and health-care settings. Vaccination against hepatitis B and annual vaccination against seasonal influenza are almost universally recommended for HCWs in Europe (29 countries each, including eight countries where vaccination against hepatitis B is mandatory or required for employment). Policies regarding HCW vaccination also exist against mumps (12 countries), measles or rubella (15 countries), varicella (17 countries), diphtheria-tetanus (14 countries), pertussis (9 countries), poliomyelitis (11 countries), hepatitis A (11 countries), tuberculosis (BCG vaccine) (9 countries), and against meningococcus group C or meningococci groups A, C, W135, Y (tetravalent vaccine) (in 4 countries each). Re-evaluation of occupational vaccine policies for HCWs in Europe on a consensus basis is imperative in order to promote HCW and patient safety.
 ...
PMID:Vaccination policies for health-care workers in acute health-care facilities in Europe. 2196 58

The study aimed to assess the determinants of immunization coverage in children born in 2008-2009, living in Zhejiang Province. The World Health Organization's cluster sampling technique was applied. Immunization coverage of 5 vaccines was assessed: BCG vaccine, diphtheria and tetanus toxoids and pertussis vaccine, poliomyelitis vaccine, hepatitis B vaccine, and measles-containing vaccine. Determinants for age-appropriate immunization coverage rates were explored using logistic regression models. Immunization coverage of 5 vaccines were all greater than 90%, but the age-appropriate immunization coverage rates for 3 months and for first dose of measles-containing vaccine was 41.3% and 64.5%, respectively. Siblings in household, mother's education level, household registration, socioeconomic level of resident areas, satisfaction with clinical immunization service, and convenient access to local immunization clinic were associated with age-appropriate coverage rates. Age-appropriate immunization coverage rates should be given more attention and should be considered as a benchmark to strive for in the future intervention.
...
PMID:Immunization coverage and its determinants among children born in 2008-2009 by questionnaire survey in Zhejiang, China. 2218 97


1 2 Next >>