This Vaccine is Effective Against all 20 Known Strains of Flu
Scientists have developed a universal flu vaccine. It’s effective against all 20 known strains of flu and could help us fight off dangerous new strains before they develop into a pandemic. The new vaccine could be in use within 2 years.
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每周 议程
每周为您呈现推动全球议程的紧要问题（英文）