Estimation of the Reproductive Number Trend of the Novel Coronavirus "COVID-19" in Southern Iran from July to November 2020.

In the present study, the accuracy of the estimated R value largely depended on whether all infected cases were identified. Therefore, the R value estimation might have been biased, because a large number of infected cases might have not been identified. On the other hand, asymptomatic cases were not referred for testing, and as a result, the value of R might have been underestimated. Although a decreasing trend was observed in the value of R in late November, the results of those restrictions and the observance of health protocols could not be examined in this study, as more time is required to review the results of the abovementioned restrictions.

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In the second half of August and September, an increasing trend was observed than the first half.

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