![]() In the preintervention phase, Table 1 shows a 11% (95%CI = 3.95, 18.23) increase in the occurrence of daily cases while Table 3 shows an astronomical increase of 163% (95%CI = 110.29, 216.06). Seventy-eight data points were used in the series with 11 (14.10%) and 25 (32.05%) data points used in the preintervention period in Figures Figures1 1 and and2, 2, respectively. This study sought to quantify the impact that China's lockdown policy had in reducing the incidence of COVID-19 using interrupted time series methods. While China has recently reported a decline in the incidence of COVID-19, it is not clear what impact the lockdown has had on this decline. There were mixed reactions to this intervention with some labelling it as extreme especially as social support was not guaranteed. ![]() The lockdown resulted in restrictions on movement among residents of the province requiring all to stay indoors during this period. On January 23rd, 2020, the government of China imposed a lockdown on Hubei province in an effort to control the spread of the disease. The situation needed containment especially with evidence of local transmission taking place in neighbouring provinces. The cumulative incidence increased exponentially daily reaching a few hundred in less than three weeks. The few weeks that followed saw more cases being detected in the Hubei province, with Wuhan city having the highest number of cases. A virus closely associated with those that cause severe acute respiratory syndrome (SARS) and Middle East Respiratory Syndrome (MERS). Samples from these patients later revealed a novel type of coronavirus known as SARS COV-2. These cases had both epidemiological and geographical ties to the Huanan seafood market in Wuhan, Hubei province, China. ![]() ![]() The recognition of a possible outbreak followed the identification of a cluster of cases presenting with a rare type of pneumonia. ![]()
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