نتایج جستجو برای: transmission blocking vaccine

تعداد نتایج: 397418  

Journal: :Parasites & Vectors 2021

Abstract Background Plasmodium vivax transmission-blocking vaccines (TBVs) are receiving increasing attention. Based on excellent activities of the PbPH (PBANKA_0417200) and PbSOP26 (PBANKA_1457700) antigens in berghei , their orthologs P. PVX_098655 (PvPH) PVX_101120 (PvSOP26), were selected for evaluation potential as TBVs. Methods Fragments PvPH (amino acids 22–304) PvSOP26 30–272) expressed...

2002
Hajime Hisaeda Koji Yasutomo

Malaria is still one of the infectious diseases urgently requiring control and causes socioeconomic burdens on people residing in developing countries. Malaria vaccines are expected to control the disease. However, there is no effective vaccine available despite the intense efforts of malaria scientists. One strategy for a malaria vaccine is to prevent parasite spread by means of interfering wi...

Journal: :Nature Reviews Drug Discovery 2017

Journal: :Nature Reviews Microbiology 2019

2015
Myriam Arévalo-Herrera Andrés F. Vallejo Kelly Rubiano Yezid Solarte Catherin Marin Angélica Castellanos Nora Céspedes Sócrates Herrera

Transmission of malaria parasites from humans to Anopheles mosquitoes can be inhibited by specific antibodies elicited during malaria infection, which target surface Plasmodium gametocyte/gamete proteins. Some of these proteins may have potential for vaccine development. Pvs48/45 is a P. vivax gametocyte surface antigen orthologous to Pfs48/45, which may play a role during parasite fertilizatio...

While attempting to clarify the confusion concerning the conceptualization of "blocking zeros" in state space in the recent literature, some new observations are made on the relationship between pole-zero cancellation and transmission blocking. An important distinction between uncontrollable and unobservable eigenvalue s is pointed out; and it is argued that the description of a Blocking Zero, ...

2016
Yuanyuan Li Darren B. Leneghan Kazutoyo Miura Daria Nikolaeva Iona J. Brian Matthew D. J. Dicks Alex J. Fyfe Sarah E. Zakutansky Simone de Cassan Carole A. Long Simon J. Draper Adrian V. S. Hill Fergal Hill Sumi Biswas

Transmission-blocking vaccines (TBV) target the sexual-stages of the malaria parasite in the mosquito midgut and are widely considered to be an essential tool for malaria elimination. High-titer functional antibodies are required against target antigens to achieve effective transmission-blocking activity. We have fused Pfs25, the leading malaria TBV candidate antigen to IMX313, a molecular adju...

Journal: :Infection and immunity 2003
Sivaprakash Rathinavelu Anne Broadwater Aravinda M de Silva

The Lyme disease spirochete, Borrelia burgdorferi, inhabits the gut lumen of the tick vector. At this location the spirochete is exposed to host blood when a tick feeds. We report here on studies that were done with normal and complement-deficient (C3-knockout) mice to determine if the host complement system killed spirochetes within the vector. We found that spirochete numbers within feeding n...

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