Dynamic Change of COVID-19 Seroprevalence among Asymptomatic Population in Tokyo during the Second Wave
Importance: Fatality rates related to COVID-19 in Japan have been low compared to Western Countries and have decreased despite the absence of lockdown. Serological tests monitored across the course of the second wave can provide insights into the population-level prevalence and dynamic patterns of COVID-19 infection.
Objective: To assess changes in COVID-19 seroprevalence among asymptomatic employees working in Tokyo during the second wave.
COVID19: Science, Logic and Data Explained
Swedish Policy Analysis for Covid19
• Swedish strategy is evidence-based and in close partnership between the government and the society.
• No forced lockdown, but ‘soft measures’ built on trust with responsibility of the individual.
• The Swedish way has also been noticed by the WHO and proposed as a future model.
• Implemented measures have successfully flattened the curve
• Limited ability to implement protective measures in some elderly homes.
Michael Levitt - Interview - Importance of Excess Death Data
Effects of a Major Deletion in the SARS-CoV-2 Genome on the Severity of Infection and the Inflammatory Response
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) variants with a 382-nucleotide deletion (∆382) in the open reading frame 8 (ORF8) region of the genome have been detected in Singapore and other countries. We investigated the effect of this deletion on the clinical features of infection.
SARS-CoV-2 Specific Memory B Cells Frequency in Recovered Patient Remains Stable While Antibodies Decay over Time
Four Stylized Facts about COVID19 - Study of Nonpharmaceutical Interventions
We document four facts about the COVID-19 pandemic worldwide relevant for those studying the impact of non-pharmaceutical interventions (NPIs) on COVID-19 transmission.
First: across all countries and U.S. states that we study, the growth rates of daily deaths from COVID-19 fell from a wide range of initially high levels to levels close to zero within 20-30 days after each region experienced 25 cumulative deaths.
Second: after this initial period, growth rates of daily deaths have hovered around zero or below everywhere in the world.