IASR Vol. 42,
No. 2 (No. 492) February 2021

---

 COVID-19 as at December 2020

• Epidemiologic situation of COVID-19 overseas (as at 12 January 2021)
• Transmissibility of COVID-19
• COVID-19 active epidemiological investigation and SARS-CoV-2 genome analysis in a long-term care facility for the elderly in Japan
• Autopsy of three previously undiagnosed COVID-19-related deaths in Japan
• Infectious viral load among cases of SARS-CoV-2 infection and epidemiology of COVID-19 in Utsunomiya City
• Introduction of COVID-19 vaccines in Japan – fundamentals of mRNA and viral vector vaccines
• Vaccination prioritization and adverse reactions to COVID-19 vaccines
• Epidemiological characteristics of COVID-19 cases in Asahikawa City detected prior to the occurrence of multiple large clusters (provisional report: November-December 2020)
• Outbreak response to a cluster of COVID-19 cases in Yoron Island, Kagoshima Prefecture
• COVID-19 case series among foreigners in Maebashi City and its vicinity, Gunma Prefecture
• Response to COVID-19 in Tokyo (2020) –Approach to monitoring occurrence of infections and medical care provision
• Health Center Real-time Information-sharing System on COVID-19 (HER-SYS) in Osaka Prefecture: data management, publication, and challenges
• Detection of respiratory pathogens in specimens without detectable SARS-CoV-2 in Akita Prefecture
• Food-borne outbreak due to Salmonella spp. associated with “Taiwanese mixed noodles”