정의: Coronavirus disease 2019 (COVID-19) is a contagious disease caused by the coronavirus SARS-CoV-2. Starting in January 2020, the disease spread worldwide, resulting in the COVID-19 pandemic. In March 2020, the World Health Organization declared COVID-19 a global health emergency; they declared the end of the emergency in May 2023.
| 핵심 연구 분야 | Infrastructure |
|---|---|
| 주요 연도 | 2020년 |
| 주요 연관 키워드 | drones |
| 좋아요 수 | 0 |