Vincere Cancer Center, 7469 E. Monte Cristo Avenue, Scottsdale, AZ, 85260, USA.
City of Phoenix, Phoenix, AZ, USA.
J Community Health. 2021 Dec;46(6):1078-1082. doi: 10.1007/s10900-021-00991-4. Epub 2021 Apr 29.
The coronavirus (COVID-19) pandemic continues to be a public health concern, and Arizona has once again been a COVID-19 hotspot, peaking at 118.3 cases per 100,000. Understanding the trends in COVID-19 positivity rates over time is crucial in planning and mitigation of the virus. This current study analyzes the trends in COVID-19 testing, and COVID-19 antigen and antibody positivity rates over a 3-month time-span from October to December 2020. A retrospective study was conducted collecting data from a mobile testing program during October to December 2020 in the Phoenix metropolitan area. COVID-19 antigen and antibody positivity rates were analyzed. A total of 6710 patients were included in the study. As the months progressed, more patients were tested (October: 1635; November: 2037; December: 3038). The COVID-19 antigen positivity rate was significantly higher in December, compared to October and November (13.43% vs. 11.43 and 10.86%, p = 0.021). COVID-19 IgG rates were also significantly higher in November and December, compared to October (16.65 and 16.50% vs. 8.74%, p < 0.001). There was a progressive increase in COVID-19 positivity cases towards the end of 2020, likely attributed to factors including social gatherings during the holidays and the relaxing of the closure restrictions. Continued public health measures is crucial in preventing the spread of COVID-19.
冠状病毒（COVID-19）大流行继续是一个公共卫生关注点，亚利桑那州再次成为 COVID-19 的热点地区，峰值达到每 10 万人 118.3 例。了解 COVID-19 阳性率随时间的趋势对于规划和减轻病毒至关重要。本研究分析了 2020 年 10 月至 12 月三个月内 COVID-19 检测以及 COVID-19 抗原和抗体阳性率的趋势。对 2020 年 10 月至 12 月在凤凰城大都市区进行的移动检测计划进行了回顾性研究，收集了数据。分析了 COVID-19 抗原和抗体阳性率。共纳入 6710 例患者。随着月份的推移，接受检测的患者越来越多（10 月：1635 例；11 月：2037 例；12 月：3038 例）。与 10 月和 11 月相比，12 月 COVID-19 抗原阳性率明显更高（13.43%比 11.43%和 10.86%，p=0.021）。与 10 月相比，11 月和 12 月 COVID-19 IgG 率也明显更高（16.65%和 16.50%比 8.74%，p<0.001）。2020 年底 COVID-19 阳性病例呈逐渐增加趋势，可能归因于节日期间的社交聚会和放宽封锁限制等因素。继续采取公共卫生措施对于防止 COVID-19 的传播至关重要。
