Results 91 to 100 of about 49,620 (199)

Heterologous prime-boost-boost immunisation of Chinese cynomolgus macaques using DNA and recombinant poxvirus vectors expressing HIV-1 virus-like particles [PDF]

open access: yes, 2011
Background: There is renewed interest in the development of poxvirus vector-based HIV vaccines due to the protective effect observed with repeated recombinant canarypox priming with gp120 boosting in the recent Thai placebo-controlled trial.
Bridge, S.   +44 more
core   +1 more source

Effects of Grafting on the Structure and Function of Coffee Rhizosphere Microbiome

open access: yesAgriculture
Heterologous double-root grafting represents an effective strategy to mitigate challenges associated with continuous coffee cropping and reduce soil-borne diseases. However, its specific regulatory mechanism remains unclear. Therefore, a field experiment
Yan Sun   +9 more
doaj   +1 more source

Lack of immune responses to Mycobacterium tuberculosis DosR regulon proteins following Mycobacterium bovis BCG vaccination. [PDF]

open access: yes, 2007
Mycobacterium bovis BCG is widely used as a vaccine against tuberculosis (TB), despite its variable protective efficacy. Relatively little is known about the immune response profiles following BCG vaccination in relation to protection against TB. Here we
Klein, Michèl R   +12 more
core   +1 more source

Antibody Response after Homologous and Heterologous Prime–Boost COVID-19 Vaccination in a Bangladeshi Residential University Cohort

open access: yesVaccines
COVID-19 vaccination strategies, including heterologous prime–boost regimens and additional booster doses, aim to optimize immune responses. However, seroepidemiological studies on immune responses to different COVID-19 vaccine types and schedules remain
Nihad Adnan   +19 more
doaj   +1 more source

Inability To Detect Cross-Reactive Memory T Cells Challenges the Frequency of Heterologous Immunity among Common Viruses

open access: yes, 2018
Human memory T cells that cross-react with epitopes from unrelated viruses can potentially modulate immune responses to subsequent infections by a phenomenon termed heterologous immunity.
Nguyen, Thi H. O.   +15 more
core   +1 more source

Mycobacterial purified protein derivatives stimulate innate immunity: Malawians show enhanced tumor necrosis factor alpha, interleukin-1beta (IL-1beta), and IL-10 responses compared to those of adolescents in the United Kingdom. [PDF]

open access: yes, 2004
To investigate the role of innate immunity in variable efficacy of Mycobacterium bovis BCG vaccination in Malawi and the United Kingdom, we examined 24-h tumor necrosis factor alpha, interleukin-1beta (IL-1beta), and IL-10 responses to mycobacterial ...
Elizabeth King   +41 more
core   +1 more source

Development of clinical immunity to Plasmodium vivax following repeat controlled human malaria infection

open access: yesNature Communications
Clinical immunity to malaria can lead to asymptomatic infection, but the underlying mechanisms remain unclear. To examine the development of clinical immunity, we conducted a multi-cohort, repeat controlled human malaria infection (CHMI) study with ...
Mimi M. Hou   +38 more
doaj   +1 more source

BCG-associated heterologous immunity, a historical perspective: experimental models and immunological mechanisms.

open access: yes, 2015
Randomized controlled trials indicate that bacille Calmette-Guerin (BCG) has beneficial heterologous ('non-specific') effects on mortality in high mortality settings.
B. Freyne   +5 more
core   +1 more source

Cross reactive cellular immune responses in chickens previously exposed to low pathogenic avian influenza

open access: yesBMC Proceedings, 2011
Background Avian influenza (AI) infection in poultry can result in high morbidity and mortality, and negatively affect international trade. Because most AI vaccines used for poultry are inactivated, our knowledge of immunity against AI is based largely ...
Kapczynski Darrell R   +5 more
doaj   +1 more source

Pre-existing YFV-17D immunity mediates T cell cross-protection against dengue virus serotype 2 infection in mice

open access: yesCommunications Biology
Widespread yellow fever virus (YFV) immunity in Sub-Saharan Africa may mitigate orthoflavivirus outbreaks. Here, we investigate whether pre-existing YFV-17D immunity confers cross-protection against dengue virus serotype 2 (DENV-2) infection in a murine ...
Prince Baffour Tonto   +5 more
doaj   +1 more source

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