Results 41 to 50 of about 49,620 (199)

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.   +43 more
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Protection of hybrid immunity against SARS-CoV-2 reinfection and severe COVID-19 during periods of Omicron variant predominance in Mexico

Frontiers in Public Health, 2023
BackgroundWith the widespread transmission of the Omicron SARS-CoV-2 variant, reinfections have become increasingly common. Here, we explored the role of immunity, primary infection severity, and variant predominance in the risk of reinfection and severe
José Antonio Montes-González, Christian Arturo Zaragoza-Jiménez, Neftali Eduardo Antonio-Villa, Carlos A. Fermín-Martínez, Carlos A. Fermín-Martínez, Daniel Ramírez-García, Arsenio Vargas-Vázquez, Rosaura Idania Gutiérrez-Vargas, Gabriel García-Rodríguez, Hugo López-Gatell, Sergio Iván Valdés-Ferrer, Omar Yaxmehen Bello-Chavolla   +11 more
doaj   +1 more source

Cross protection to SARS-CoV-2 variants in hamsters with naturally-acquired immunity

Virology Journal, 2023
Since SARS-CoV-2 was first reported in late 2019, multiple variations of the original virus have emerged. Each variant harbors accumulations of mutations, particularly within the spike glycoprotein, that are associated with increased viral ...
Saina Beitari, Diana Duque, Jegarubee Bavananthasivam, Melissa Hewitt, Jagdeep K. Sandhu, Ita Hadžisejdić, Anh Tran   +6 more
doaj   +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

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

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

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

Asymptomatic Plasmodium falciparum infections may not be shortened by acquired immunity [PDF]

, 2015
The duration of untreated Plasmodium falciparum infections is a defining characteristic of the parasite's biology. It is not clear whether naturally acquired immunity (NAI) can shorten infections, despite the potential implications for malaria control ...
Maire, Nicolas, Ingrid Felger, Michael T Bretscher, Tom Smith, Seth Owusu-Agyei, Owusu-Agyei, Seth, Nicolas Maire, Felger, Ingrid, Bretscher, Michael T, Smith, Tom, Bretscher, Michael T.   +10 more
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Heterologous immunity between viruses

, 2014
Immune memory responses to previously encountered pathogens can sometimes alter the immune response to and the course of infection of an unrelated pathogen by a process known as heterologous immunity.
Selin, Liisa K., Welsh, Raymond M., Che, Jenny Wun-Yue, Brehm, Michael A.   +3 more
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Primary ChAdOx1 vaccination does not reactivate pre-existing, cross-reactive immunity

Frontiers in Immunology, 2023
Currently available COVID-19 vaccines include inactivated virus, live attenuated virus, mRNA-based, viral vectored and adjuvanted protein-subunit-based vaccines.
Larissa Henze, Larissa Henze, Julian Braun, Julian Braun, Lil Meyer-Arndt, Lil Meyer-Arndt, Lil Meyer-Arndt, Lil Meyer-Arndt, Karsten Jürchott, Karsten Jürchott, Maike Schlotz, Janine Michel, Marica Grossegesse, Maike Mangold, Maike Mangold, Manuela Dingeldey, Manuela Dingeldey, Beate Kruse, Beate Kruse, Pavlo Holenya, Norbert Mages, Norbert Mages, Norbert Mages, Ulf Reimer, Maren Eckey, Karsten Schnatbaum, Holger Wenschuh, Bernd Timmermann, Florian Klein, Florian Klein, Florian Klein, Andreas Nitsche, Claudia Giesecke-Thiel, Lucie Loyal, Lucie Loyal, Andreas Thiel, Andreas Thiel   +36 more
doaj   +1 more source