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Query: UMLS:C0348321 (Haemophilus)
 15,372 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

In the past decade, immunization rates among preschool-age children in the United States have decreased to levels lower than those in many developing countries. As a result, epidemics of vaccine-preventable diseases have occurred, especially in urban areas. Six of the infections prevented by immunization--those caused by Bordetella pertussis, Streptococcus pneumoniae, Haemophilus influenzae type B, Corynebacterium diphtheriae, measles virus, and influenza virus--frequently cause respiratory tract disease. Pneumonia in children may have subtle presentations and require special considerations depending on the age and condition of the child and the current rate of disease in the community. In addition to the epidemics occurring throughout the country, the growing number of immunocompromised children has also influenced diagnostic, treatment, and prevention considerations. These patients include children with cancer, organ transplants, congenital immune disorders, sickle cell disease, human immunodeficiency virus infection, as well as other disorders that lead to increased risk of infection. The current recommendations for routine and special childhood immunizations are reviewed in this article.
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PMID:Vaccine-preventable respiratory infections in childhood. 180 99

Pediatric immunization schedules have become more complex, especially with the approval of two new vaccines for Haemophilus influenzae type b and changes in recommendations for measles vaccine. In addition, vaccines for other infections (eg, rotavirus, varicella, and respiratory syncytial virus) are in development and likely will become available in the future. These recent advances raise hope that the list of diseases eradicated through vaccination will be expanded.
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PMID:Current status of pediatric vaccines. 183 27

Contrary to the regular immunization schedule for children, the majority of immunization are done in adulthood in case of special risks only, such as old age, chronic illness or exposure. The protection against a variety of communicable diseases has to be monitored and if necessary to be boosted regularly. Based on the routine vaccination scheme 1991 of the Federal Department of Public Health, the following vaccinations which are commercially available in Switzerland are discussed in this review: diphtheria, Haemophilus influenzae, hepatitis B, influenza, measles + mumps + rubella, meningococci, pertussis, pneumococci, poliomyelitis, tetanus, rabies, tuberculosis, varicella and tick encephalitis. Furthermore, the current recommendations are given for the prophylactic and therapeutic use of immunoglobuline preparations.
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PMID:[Active and passive immunization: 1991 status]. 185 65

Acute respiratory infections cause four and a half million deaths among children every year, the overwhelming majority occurring in developing countries. Pneumonia unassociated with measles causes 70% of these deaths; post-measles pneumonia, 15%; pertussis, 10%; and bronchiolitis and croup syndromes, 5%. Both bacterial and viral pathogens are responsible for these deaths. The most important bacterial agents are Streptococcus pneumoniae, Haemophilus influenzae, and Staphylococcus aureus. The data on bacterial etiology of pneumonia during the first 3 months of life are limited, and almost no information on the role of chlamydia and pertussis in this age period is available. The distribution of viral pathogens in developing countries can be summarized as follows: respiratory syncytial virus, 15%-20%; parainfluenza viruses, 7%-10%; and influenza A and B viruses and adenovirus, 2%-4%. Mixed viral and bacterial infections occur frequently. Risk factors that increase the incidence and severity of lower respiratory infection in developing countries include large family size, lateness in the birth order, crowding, low birth weight, malnutrition, vitamin A deficiency, lack of breast feeding, pollution, and young age. Effective interventions for prevention and medical case management are urgently needed to save the lives of many children predisposed to severe disease.
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PMID:Epidemiology of acute respiratory infections in children of developing countries. 186 76

The major bacterial and viral causes of morbidity and death due to acute lower respiratory infection (ALRI) in the developing world are amenable to control by vaccines. Initially, full use of measles, pertussis, and diphtheria vaccines, in appropriately scheduled programs, can make an immediate contribution to the reduction of severe respiratory infection. Emerging technologies offer the promise of vaccines against bacterial and viral respiratory pathogens that are suitable for infants and children in developing countries. These technologic advances include the use of protein-polysaccharide conjugates of endemic serotypes for Haemophilus influenzae and Streptococcus pneumoniae vaccines and new approaches to the use of purified protein components or attenuated live virus with respiratory syncytial virus and paramyxovirus vaccines. Such vaccines should soon be available for evaluation in developing countries. It is timely to embark upon a program of development, evaluation, and worldwide deployment of vaccines for the control of ALRI.
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PMID:Control of acute lower respiratory illness in the developing world: an assessment of vaccine intervention. 186 86

Immunization practice in 32 countries in Europe, North America, Japan, and Australia is reviewed. in most countries, immunization practices are set by the federal government which sometimes works with the private sector. Almost all countries routinely immunize against diphtheria, tetanus, whooping cough, polio, and measles. About half try to prevent rubella, several try to prevent mumps, usually in combination with measles and rubella (MMR). More than half use bacillus Calmette-Guerin (BGG) vaccine to prevent tuberculosis, and a few give Hemophilus Influenza type B polysaccharide. Poliomyelitis vaccine comes in 2 forms: 1) oral live attenuated (OPV) or injectable inactivated (IPV). OPV is more used, but there is a new "enhanced potency IPV." All countries except Japan give DPT in 3 doses during the 1st year of life. OPV is usually given at the same time that DPT is. Measles vaccine or MMR is usually given between 12 and 18 months of age. Primary vaccine failure occurs in 2-5% of people who get measles vaccine, but this may be enough to "sustain transmission." In most countries, the government provides for immunizing children. An exception in the US. In the UK, low coverage has taken place because of concern for adverse reactions (whooping cough) or lack of appreciation of the disease's impact (measles). Coverage against both measles and pertussis has improved in the UK lately. In each developed country, vaccines have had "spectacular" effects. However, there are too many contraindications and there is "undue fear of adverse events." Also, there are surveillance deficiencies, a lack of coordination, and countries vary in their commitment to "reduction/elimination targets." Varicella vaccine, respiratory syncytial virus vaccine, and rotavirus vaccine are being considered for universal use. Attempts are being made to improve the safety of some vaccine.
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PMID:Immunisation practice in developed countries. 196 69

The resurgence of measles has highlighted concerns about U.S. programs for immunization in infants and children. In order to put the problems into perspective, this review will address such issues as the safety of pertussis vaccines; oral vs inactivated poliovirus vaccine; vaccines for measles-mumps-rubella, Hemophilus influenzae type B, and hepatitis B; and varicella vaccine.
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PMID:Immunization practices in children. 211 22

Vaccines have given health care providers control over a substantial portion of the morbidity and mortality in the developing world. Global efforts have immunized two-thirds of the world's children with DTP and polio vaccines; 72% have received BCG and 59% measles vaccine; but only 29% of pregnant women have received two doses of tetanus toxoid. In addition, vaccines against yellow fever, Japanese encephalitis, hepatitis B, rubella, and mumps and meningococcal polysaccharide vaccine are being used in specific regions of the world. New vaccine candidates will enhance the vaccine armamentarium over the next decade to include the causes of pneumonia, diarrhea, and meningitis: Haemophilus influenzae type b, pneumococcal and meningococcal protein conjugate vaccines, typhoid and rotavirus vaccine. Genetically engineered vaccine vehicles, genetic reassortants, and genetic deletions are being investigated as new vaccine candidates.
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PMID:Vaccine-preventable disease and immunization in the developing world. 219 Jan 45

The etiology of acute lower respiratory tract infection (ALRI) was identified in 235 (43.8%) of 537 hospitalized children less than 5 years of age. Clinical evidence of measles was found in 258 (48.0%) patients, of whom 59 had a second viral infection. A viral agent was identified in an additional 121 patients, so that a total of 379 (70.6%) had viral infections. After measles, respiratory syncytial virus was the most common respiratory virus. Bacteremia was noted in 72 children (13.4%), occurring as frequently in children with measles (14.8%) as in those without (12.1%); Haemophilus influenzae and Salmonella typhi were predominant in the former, and H. influenzae, Staphylococcus aureus, and Streptococcus pneumoniae were prominent in the latter. The presence of bacterial antigen in urine was not helpful in identifying bacterial infection. Extrapulmonary and intrapleural complications, concomitant measles, complicated ALRI, female gender, and malnutrition were associated with increased mortality among children with ALRI. The importance of measles immunization, vitamin A supplementation for alleviation of defects associated with malnutrition, and timely antimicrobial therapy is emphasized.
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PMID:Etiology of acute lower respiratory tract infection in children from Alabang, Metro Manila. 227 Apr 15

The french calendar of vaccinations is devised by the General Directorate of Health (Technical Committee of Vaccinations, High Council of Hygiene) and is regularly updated. The 1990 calendar has recently been published. Primary combined immunization against diphtheria, tetanus, poliomyelitis and pertussis has been brought forward from 3 to 2 months for better prevention of pertussis in young infants. BCG remains mandatory and can be administered in the first days of life without any risk of failure. Immunization against measles, mumps and rubella is performed between the ages of 12 and 15 months and has recently been the object of a national promotional program. The timetable must be respected to reach the national and international objectives which are to maintain a high degree of vaccinal cover in order to eradicate viral diseases with human reservoir, i.e. poliomyelitis, rubella, measles and mumps. In the near future, the calendar will be improved by the advent of a vaccine against Haemophilus B and, perhaps, an acellular pertussis vaccine. As it is possible to leave long intervals between the various vaccinations and vaccinal associations, this calendar can easily be applied to infants and catching up is facilitated.
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PMID:[Vaccination schedule, present and future]. 228 Dec 64


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