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In this article, we deal with COVID-19 data to study the trend of theepidemic at the global situation. Choosing the mortality rate as an appropriatemetric which measures the relative relation between the cumulative confirmedcases and death cases, we utilize the modified kernel estimator for randomdensity function (Petersen and Muller, 2016) to obtain the density of themortality rate, and apply Frechet change point detection (Dubey and Muller,2020) to check if there is any significant change on the dynamic pattern ofCOVID-19 deaths. The analysis shows that the pattern of global COVID-19mortality rate seems to have an obvious change at 104 days after first day whenthe reported death cases exceed 30. Then we discuss the reasons of abruptchange of mortality rate trend from aspects both subjective and objective.

These Unprecedented Times: The Dynamic Pattern Of COVID-19 Deaths Around The World