『Malaria Cases Surge to 282 Million Despite New Vaccines: Expert Warns of Protection Gaps and Drug Resistance』のカバーアート

Malaria Cases Surge to 282 Million Despite New Vaccines: Expert Warns of Protection Gaps and Drug Resistance

Malaria Cases Surge to 282 Million Despite New Vaccines: Expert Warns of Protection Gaps and Drug Resistance

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A Johns Hopkins University malaria expert warned on April 12 that rising global cases and deaths underscore the limits of existing vaccines, with World Health Organization data showing 282 million infections and 610,000 fatalities in 2024, up from prior years despite WHO approvals of RTS,S (Mosquirix) in 2021 and R21 in 2023 now used in 24 countries. Jane M. Carlton emphasized that these vaccines reduce child cases by over 50 percent in the first year after three doses, but protection wanes without a fourth, and delivery challenges persist in rural areas, madhyamamonline.com reported. She stressed combining them with bed nets, drugs, and mosquito control, amid growing artemisinin resistance in eight African countries, insecticide-resistant mosquitoes like Anopheles stephensi, and parasites evading rapid tests. Rotary International highlighted on April 12 how Mosquirix and R21 have built vital infrastructure for future shots, paving the way for candidates like Australia's PlasProtecT, which targets the parasite in the bloodstream unlike liver-focused predecessors. Phase 1 human trials for PlasProtecT begin this year after strong preclinical results against multiple strains, with Griffith University researchers seeking funds for pediatric efficacy tests by 2028, though scientific hurdles remain unpredictable. Vax-Before-Travel noted on April 12 that malaria vaccines available abroad are not yet approved in the USA, amid Southeast Florida's ongoing mosquito alerts tied to travel-linked cases of malaria, dengue, and chikungunya. Carlton also touted Ganaplacide/lumefantrine (GanLum), the first new antimalarial class in over 25 years, as a key advance. These developments signal cautious progress against a disease threatening eradication goals, but experts agree multifaceted strategies are essential. This content was created in partnership and with the help of Artificial Intelligence AI.
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