Safety and immunogenicity of an MF59-adjuvanted spike glycoprotein-clamp vaccine for SARS-CoV-2: a randomised, double-blind, placebo-controlled, phase 1 trial.
Chappell KJ, Mordant FL, Li Z, Wijesundara DK, Ellenberg P, Lackenby JA, Cheung STM, Modhiran N, Avumegah MS, Henderson CL, Hoger K, Griffin P, Bennet J, Hensen L, Zhang W, Nguyen THO, Marrero-Hernandez S, Selva KJ, Chung AW, Tran MH, Tapley P, Barnes J, Reading PC, Nicholson S, Corby S, Holgate T, Wines BD, Hogarth PM, Kedzierska K, Purcell DFJ, Ranasinghe C, Subbarao K, Watterson D, Young PR, Munro TP
COVID-19
Results from a malaria indicator survey highlight the importance of routine data capture in high-risk forest and farm transmission sites in Vietnam to tailor location-specific malaria elimination interventions.
Ngo TD, Canavati SE, Dung DV, Vo TH, Tran DT, Tran LK, Whedbee RJ, Milgotina EI, Kelly GC, Edgel KA, Martin NJ
Using Wolbachia to Eliminate Dengue: Will the Virus Fight Back?
Recent field trials have demonstrated that dengue incidence can be substantially reduced by introgressing strains of the endosymbiotic bacterium Wolbachia into Aedes aegypti mosquito populations. This strategy relies on Wolbachia reducing the susceptibility of Ae. aegypti to disseminated infection by positive-sense RNA viruses like dengue. However, RNA viruses are well known to adapt to antiviral pressures. Here, we review the viral infection stages where selection for Wolbachia-resistant virus variants could occur. We also consider the genetic constraints imposed on viruses that alternate between vertebrate and invertebrate hosts, and the likely selection pressures to which dengue virus might adapt in order to be effectively transmitted by Ae. aegypti that carry Wolbachia. While there are hurdles to dengue viruses developing resistance to Wolbachia, we suggest that long-term surveillance for resistant viruses should be an integral component of Wolbachia-introgression biocontrol programs.