As Covid-19 ravaged the globe throughout 2020, some countries and regions were lauded for the efficient and effective measures they took. One of these was South Korea, which implemented widespread testing that temporarily slowed down the virus’ spread. However, the Korea Disease Control and Prevention Agency (KDCA) reported five days straight of over 300 new daily cases in November, a worrying development that prompted Seoul to close bars and nightclubs, limit religious gatherings and restrict service at restaurants. And even celebrities aren’t safe. Idol Chungha recently confirmed that she tested positive for the virus – the latest in a string of K-pop stars who have caught it. Here are more who have struggled with Covid-19, and what we know about their situations. IU, the K-pop millionaire who gives much of her fortune away Up10tion Two members of K-pop boy band Up10tion tested positive, their talent agency Top Media announced – Bitto at the end of November and Kogyeol last week. Thankfully, the rest of the members tested negative. Since Up10tion performed on MBC’s Show! Music Core and SBS’s Inkigayo , other music artists who appeared on the music TV programmes also got tested after the news about Bitto. Gyuri Park Gyu-ri, the former leader of now defunct girl group Kara , was filmed dancing in a nightclub without wearing her mask properly in May. The club was later linked to the Itaewon Covid-19 cluster of South Korea’s second wave of the virus. In a statement made through her agency, Park said that she tested negative and publicly apologised for her actions, expressing her “deep regret”. Which K-drama actor is on course to become the next Lee Min-ho? Everglow Yiren and Sihyeon of Everglow were reported to have tested positive after the girl group took part in TV show Yoo Hee-yeoul’s Sketchbook in late November. Two days before Everglow’s appearance on the show, Yiren apparently came into contact with another person confirmed to have the virus, although she didn’t find out about it until later. The rest of Everglow, along with the staff who took part in the show, all got screened. The group’s four other members tested negative. #BoycottSM: why are K-pop fans calling out SM Entertainment? Lee Chan-won Lee Chan-won, a singer who appeared on the popular music reality TV show Mr Trot , admitted to testing positive last week. His agency, New Era Project, announced that Lee went into self-quarantine. Since Lee had recently taken part in TV Chosun’s Ppong School , other celebrities who appeared on the programme, as well as some of the broadcaster’s other series got tested, too. Basketball-star-turned-entertainer Seo Jang-hoon and singers Lee Juck and Yoon Jong-shin, who share the same stylist as Lee, went into self-quarantine as a precaution. Want more stories like this? Sign up here . Follow STYLE on Facebook , Instagram , YouTube and Twitter . For more great stories on Korean entertainment, artist profiles and the latest news, visit K-post, SCMP's K-pop hub .