On August 8, STAYC's management agency HIGH-UP Entertainment announced that Sumin, Sieun, ISA, Seeun, and J have been diagnosed with COVID-19.
Yoon is the only member who has been tested negative for COVID-19.
![STAYC](https://img.sbs.co.kr/newimg/news/20220809/201690376_700.jpg)
However, on the early morning of August 8, Sieun had a sore throat and used another self-testing kit, which came out positive.
Sumin, Isa, Seeun, and J also tested positive on the rapid antigen test that they took after the self-testing.
![STAYC](https://img.sbs.co.kr/newimg/news/20220809/201690377_700.jpg)
As almost all members of STAYC have been diagnosed with COVID-19, the group's first fan meeting 'STAY COOL PARTY', which was scheduled to take place on August 13, has also been temporarily postponed.
![STAYC](https://img.sbs.co.kr/newimg/news/20220809/201690378_700.jpg)
(SBS Star)