Junior High School Student’s Contagion Literacy: How far students understand Covid-19 Symptoms?Wahyu Budi Sabtiawan, Elok Sudibyo, Aris Rudi Purnomo, Dhita Ayu Permata Sari, Mohammad Budiyanto and Beni SetiawanE3S Web Conf., 328 (2021) 06009DOI: https://doi.org/10.1051/e3sconf/202132806009