Abstract It is urgent to understand the future of severe acute respiratory syndrome–coronavirus 2 (SARS-CoV-2) transmission. We used estimates of seasonality, immunity, and cross-immunity for betacoronaviruses OC43 and HKU1 from time series data from the USA to inform a model of SARS-CoV-2 transmission. We projected that recurrent wintertime outbreaks of SARS-CoV-2 will probably occur after the initial, most severe pandemic wave. Absent other interventions, a key metric for the success of social distancing is whether critical care capacities are exceeded. To avoid this, prolonged or intermittent social distancing may be necessary into 2022. Additional interventions, including expanded critical care capacity and an effective therapeutic, would improve the success of intermittent distancing and hasten the acquisition of herd immunity. Longitudinal serological studies are urgently needed to determine the extent and duration of immunity to SARS-CoV-2. Even in the event of apparent elimination, SARS-CoV-2 surveillance should be maintained since a resurgence in contagion could be possible as late as 2024.
「おもてなし」というのは要するに「客」として扱うことであり、「You are not one of us.」と言っているのと同じだ。短期滞在者にとっては益があっても、長期間日本に住んでいる人の場合はそうでもない。どれだけ日本語を勉強して日本の風習や文化を理解しても、いつまで経ってもガイジン扱いなのに嫌気がさして結局日本を去っていく、という例はとても多いと思う。このフローラン・ダバディ氏も通訳をこなすぐらいの日本通なので、そういった意味でかなりストレスを感じているのかもしれない。