Results 41 to 50 of about 449,551 (293)

Nontuberculous Mycobacteria and Heterologous Immunity to Tuberculosis

The Journal of Infectious Diseases, 2019
AbstractDevelopment of an improved tuberculosis (TB) vaccine is a high worldwide public health priority. Bacillus Calmette-Guerin (BCG), the only licensed TB vaccine, provides variable efficacy against adult pulmonary TB, but why this protection varies is unclear.
Javeed A Shah, Cecilia S Lindestam Arlehamn, David J Horne, Alessandro Sette, Thomas R Hawn   +4 more
openaire   +3 more sources

MHC basis of T cell-dependent heterologous immunity to arenaviruses [PDF]

, 2014
Having a history of infection with one pathogen may sometimes provide a level of T cell-dependent protective heterologous immunity to another pathogen.
Raymond M. Welsh, Welsh, Raymond M., Hatfield, Steven D., Keith A. Daniels, Steven D. Hatfield, Brehm, Michael A., Daniels, Keith A., Michael A. Brehm   +7 more
core   +1 more source

MVA-based H5N1 vaccine affords cross-clade protection in mice against influenza A/H5N1 viruses at low doses and after single immunization. [PDF]

, 2009
Human infections with highly pathogenic avian influenza viruses of the H5N1 subtype, frequently reported since 2003, result in high morbidity and mortality.
Sutter, G. (Gerd), Sutter Gerd, Rimmelzwaan, Guus F., Osterhaus, A.D.M.E. (Albert), Yasemin Suezer, Gerrie de Mutsert, Suezer, Yasemin, Geert van Amerongen, Löwer, Johannes, Fouchier Ron A. M., Osterhaus, Albert D. M. E., Kreijtz, Joost H. C. M., Mutsert, Gerrie de, Fouchier, Ron A. M., Fouchier, R.A.M. (Ron), Guus F Rimmelzwaan, van den Brand Judith M. A., Löwer Johannes, Johannes Löwer, Kreijtz, J.H.C.M. (Joost), Suezer, Y., Judith M A van den Brand, Suezer Yasemin, Mutsert, G. (Gerrie) de, Amerongen, G. (Geert) van, Rimmelzwaan Guus F., Brand, J.M.A. (Judith) van den, Joost H C M Kreijtz, Sutter, Gerd, Schwantes, Astrid, de Mutsert Gerrie, Brand, Judith M. A. van den, Osterhaus Albert D. M. E., Schwantes Astrid, Scwantes, A. (Astrid), Ron A M Fouchier, van Amerongen Geert, Albert D M E Osterhaus, Gerd Sutter, Astrid Schwantes, Rimmelzwaan, G.F. (Guus), Kreijtz Joost H. C. M., Amerongen, Geert van, Löwer, J., Fouchier, Ron A.M.; id_orcid, Scwantes, Astrid, van Amerongen, Geert, van den Brand, Judith M.A., Osterhaus, Albert D.M.E., Kreijtz, Joost H.C.M., de Mutsert, Gerrie   +50 more
core   +1 more source

Evaluation of non-reciprocal heterologous immunity between unrelated viruses [PDF]

, 2015
Heterologous immunity refers to the phenomenon whereby a history of an immune response against one pathogen can provide a level of immunity to a second unrelated pathogen.
Selin, Liisa K., Raymond M. Welsh, Welsh, Raymond M., Jenny W. Che, Che, Jenny W., Liisa K. Selin   +5 more
core   +1 more source

Heterologous immunity revisited

Parasitology, 2001
Heterologous immunity, or protection by one invading organism against another across phylogenetic divides, has been recognised for decades. It was initially thought to operate largely through enhancement of phagocytosis, but this explanation became untenable when it was realised it worked extremely well against intraerythrocytic protozoa and killed ...
openaire   +2 more sources

Pathogenic epitopes, heterologous immunity and vaccine design [PDF]

Nature Reviews Microbiology, 2007
Substantial research has been directed towards the development of a new generation of vaccines that are based on the inclusion of immunogenic epitopes in recombinant vectors. Here we examine the evidence that under certain conditions immunogenic epitopes can do more harm than good and might therefore be considered pathogenic.
Welsh, Raymond M., Fujinami, Robert S.
openaire   +2 more sources

Heterologous autoimmunity and prokaryotic immune defense [PDF]

, 2021
Some prokaryotes possess CRISPR-Cas systems that provide adaptive immunity to viruses guided by DNA segments called spacers acquired from invading phage. However, the patchy incidence and limited memory breadth of CRISPR-Cas systems suggest that their fitness benefits are offset by costs.
Hanrong Chen, Andreas Mayer, Vijay Balasubramanian   +2 more
openaire   +2 more sources

Correlation of memory T cell responses against TRAP with protection from clinical malaria, and CD4+ CD25high T cells with susceptibility in Kenyans [PDF]

, 2008
Background - Immunity to malaria develops naturally in endemic regions, but the protective immune mechanisms are poorly understood. Many vaccination strategies aim to induce T cells against diverse pre-erythrocytic antigens, but correlates of protection ...
Magdalena Plebanski, Stephen M. Todryk, Todryk, Stephen M., Plebanski Magdalena, Bejon, P, Hill, Adrian, Tabitha Mwangi, Kevin Marsh, Urban Britta, Flanagan Katie L., Mwangi Tabitha, Plebanski, Magdalena, Urban, B, Britta Urban, Todryk, Stephen, Hill Adrian V. S., Urban, Britta, Katie L Flanagan, Flanagan, KL, Hill, AV, Philip Bejon, Bejon, Philip, Marsh Kevin, Marsh, K, Mwangi, T, Mwangi, Tabitha, Flanagan, Katie, Hill, Adrian V. S., Bejon Philip, Plebanski, M, Katie L. Flanagan, Adrian V S Hill, Todryk Stephen M., Adrian V. S. Hill, Stephen M Todryk, Marsh, Kevin, Todryk, SM, Flanagan, Katie L.   +37 more
core   +1 more source

Trained immunity-related vaccines: innate immune memory and heterologous protection against infections

, 2022
The innate immune system is able to build memory-like features in response to certain infections or vaccines, resulting in enhanced responsiveness upon (re)challenge with the same or an unrelated pathogen, a phenomenon termed 'trained immunity'. Compared
Ziogas, A., Netea, M.G.
core   +1 more source

Past Life and Future Effects—How Heterologous Infections Alter Immunity to Influenza Viruses

Frontiers in Immunology, 2018
Influenza virus frequently mutates due to its error-prone polymerase. This feature contributes to influenza virus’s ability to evade pre-existing immunity, leading to annual epidemics and periodic pandemics.
Aisha Souquette, Paul G. Thomas
doaj   +1 more source