The World Health Organization (WHO) has proposed to develop new coronavirus vaccines, APA reports.
"Current vaccines were designed to prevent serious illness and death, which they have succeeded in doing, saving millions of lives. However, they have not substantially reduced transmission.
As the virus continues to circulate widely, new and dangerous variants are emerging, including some which reduce the efficacy of vaccines. It is fundamental to continue investing in research and development to make more effective, easier to administer vaccines, such as nasal spray products."
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