TIME Magazineのインスタグラム(time) - 9月17日 03時50分

The quest to develop a vaccine for a new infectious disease is a gamble at best, writes Alice Park; nearly four decades after HIV was discovered, there is still no effective vaccine against that virus. SARS-CoV-2, the coronavirus behind COVID-19, is so new to the scientific community that it's not even clear yet what the human body needs to prevent infection—or if such a thing is even possible. The urgency of the pandemic means doctors will have only about a month's worth of information from studies on how long the immunity from the shots might last. Given that, some experts, including those developing the vaccine candidates, say we should at best expect a vaccine that can minimize the effects of the disease, rather than provide the "sterilizing immunity" that would protect people from infection entirely. Another challenge: just one vaccine likely won’t be enough. Read more about the unprecedented scramble to immunize the world against COVID-19 at the link in bio. Illustration by @petergreenwooduk for TIME

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