Herd Immunity
Mostrando 1-12 de 23 artigos, teses e dissertações.
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1. Os coletivos da Covid-19
RESUMO Ao estudar um fenômeno que atinge a população de diversos continentes, cuidamos de coletivo de pessoas. A pandemia que assola a humanidade é pouco conhecida. Buscando entendê-la, aparecem outros coletivos no discurso: coletivo do pensamento, aglomeração, rede, teste, UTI, rebanho, comboio. Na análise desses coletivos, buscamos elucidar controv
Estud. av.. Publicado em: 2020-08
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2. Clinical, laboratorial diagnosis and prophylaxis of measles in Brazil
RESUMO O sarampo é uma doença exantemática febril aguda de etiologia viral altamente contagiosa. É causa de morbidade e mortalidade de crianças em países em desenvolvimento, ao passo que se tornou mais rara em países desenvolvidos devido à vacinação. O diagnóstico diferencial deve ser realizado em relação a outras doenças da infância, como inf
J. Bras. Patol. Med. Lab.. Publicado em: 02/09/2019
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3. Perspectives on the Zika outbreak: herd immunity, antibody-dependent enhancement and vaccine
Rev. Inst. Med. trop. S. Paulo. Publicado em: 13/04/2017
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4. Condicionantes sociais na delimitação de espaços endêmicos de hanseníase / Social conditions in the delimitation of areas endemic for leprosy
INTRODUÇÃO: A hanseníase é uma doença infecciosa crônica granulomatosa, cujo agente etiológico é uma bactéria de vida intracelular obrigatória, o Mycobacterium leprae, que tem no homem seu principal reservatório. A doença possui distribuição universal, predominando atualmente, em latitudes tropicais e tem sido enquadrada entre as enfermidades n
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 21/09/2012
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5. Caracterização molecular de rotavírus genotipo P[6] de origem humana em um foco de diarreia neonatal suína
Neonatal diarrhea is the major piglet health problem in swine production systems worldwide.In intensive production the porcine serogroup A rotaviruses (PoRV-A) are common cause of diarrhea in suckling and recently weaned piglets. The VP4 and VP7 proteins of the outer layer viral capsid of RV-A are relevant for immunity against rotavirus infection by inducing
Publicado em: 2010
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6. Uso de modelos de análise de decisão nos programas de vacinação contra a varicela / Use of decision analysis models in the programs of vaccination against varicella
BACKGROUND: The choice between different decision analysis models introduces variability in the results of economic evaluations. Static models do not take into account the indirect effects of vaccination, thus compromising the overall assessment of vaccination benefits. This work developed two models one dynamic and another static to conduct cost-effectivene
Publicado em: 2009
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7. Herd immunity from meningococcal serogroup C conjugate vaccination in England: database analysis
BMJ Publishing Group Ltd.
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8. Intranasal Immunization of Mice with a Mixture of the Pneumococcal Proteins PsaA and PspA Is Highly Protective against Nasopharyngeal Carriage of Streptococcus pneumoniae
Acquisition of pneumococci is generally from carriers rather than from infected individuals. Therefore, to induce herd immunity against Streptococcus pneumoniae it will be necessary to elicit protection against carriage. Capsular polysaccharide-protein conjugates, PspA, and PsaA are known to elicit some protection against nasopharyngeal carriage of pneumococ
American Society for Microbiology.
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9. Circumvention of Herd Immunity during an Outbreak of Meningococcal Disease Could Be Correlated to Escape Mutation in the porA Gene of Neisseria meningitidis
Meningococcal strains isolated during an outbreak were shown to belong to the ET-5 complex and to harbor a mutation in the VR2 region of the porA gene. They were less susceptible to the bactericidal effect of normal human serum than was the ET-5 wild-type strain. These results are of concern, as PorA is a potential target in vaccine design.
American Society for Microbiology.
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10. Group interest versus self-interest in smallpox vaccination policy
The recent threat of bioterrorism has fueled debate on smallpox vaccination policy for the United States. Certain policy proposals call for voluntary mass vaccination; however, if individuals decide whether to vaccinate according to self-interest, the level of herd immunity achieved may differ from what is best for the population as a whole. We present a
National Academy of Sciences.
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11. Epidemiology of infectious syphilis in Singapore.
The incidence of early infectious syphilis in Singapore rose from 8.7 per 100,000 in 1980 to 25 per 100,000 in 1984. In this epidemiological study of 100 patients with early syphilis, 70 were men, the mean age was 31.7 (range 17 to 68) years, 25 patients had primary syphilis, 47 secondary syphilis, and the remaining 28 had early latent syphilis. Female prost
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12. Is post partum rubella vaccination worthwhile?
This study was designated to determine whether a program of screening for rubella antibodies during pregnancy, coupled with selective vaccination after delivery, could effectively increase herd immunity. One thousand women were studied when they returned for further antenatal care after having been screened, and possibly vaccinated, during an earlier pregnan