Massoudi Barbara L, McQueen Matthew B, Gertz Autumn H, Sewalk Kara C, Brownstein John S
The Center for Transforming Health, The MITRE Corporation, McLean, Virginia.
Public Health, Environmental and Life Sciences, The MITRE Corporation, McLean, Virginia.
AJPM Focus. 2025 May 9;4(4):100367. doi: 10.1016/j.focus.2025.100367. eCollection 2025 Aug.
U.S. investment in COVID-19 testing and diagnostics provided more than 1 billion tests to vulnerable populations across the nation; however, the impact of testing on behaviors that lead to transmission has not been previously assessed.
Outbreaks Near Me collects crowdsourced data from volunteer participants to help citizens and public health agencies identify hotspots for COVID-19. Outbreaks Near Me also collects data on what actions individuals take after testing positive for COVID-19.
Data collection from November 2022 through September 2023 showed that most people (75%) reported at least 2 precautions to protect others from contracting COVID-19. The overwhelming majority of those who reported measures (81%) indicated that they will continue to practice those precautions until they have a negative test result or are at least 10 days after the initial positive result. In addition, receiving a positive test was the catalyst for 48% to seek medical care or COVID-19 therapeutics, demonstrating that among this volunteer participant population, testing is impactful in preventing spread and adverse health outcomes from infection. Covariates included age, sex, race and ethnicity, comorbidities, vaccination status, and occupation in the healthcare industry.
These results suggest that high proportion of individuals who tested positive for COVID-19 were likely to take precautions to protect others and to seek medical care or treatment. Overall, behavior change was found to be higher among those aged >65 years, among females, among those who received or intended to receive a booster vaccination, and among those with 2 or more comorbidities. Nearly half of individuals sought either medical care or treatment after testing. These findings support continued investment in testing and diagnostics to prevent and mitigate the spread of COVID-19 and emphasize the importance of testing and diagnostics as part of medical countermeasures' role in pandemic preparedness and response.
美国对新冠病毒检测和诊断的投资为全国弱势群体提供了超过10亿次检测;然而,此前尚未评估检测对导致传播的行为的影响。
“我附近的疫情”从志愿者参与者那里收集众包数据,以帮助公民和公共卫生机构识别新冠病毒热点地区。“我附近的疫情”还收集了个人新冠病毒检测呈阳性后采取何种行动的数据。
2022年11月至2023年9月的数据收集显示,大多数人(75%)报告至少采取了2种预防措施以保护他人不感染新冠病毒。绝大多数报告采取措施的人(81%)表示,他们将继续采取这些预防措施,直到检测结果呈阴性,或者至少在首次检测呈阳性结果后的10天。此外,检测呈阳性促使48%的人寻求医疗护理或新冠病毒治疗,这表明在这群志愿者参与者中,检测对于预防感染传播和不良健康后果具有重要作用。协变量包括年龄、性别、种族和族裔、合并症、疫苗接种状况以及医疗行业的职业。
这些结果表明,新冠病毒检测呈阳性的人群中,很大一部分人可能会采取预防措施来保护他人,并寻求医疗护理或治疗。总体而言,发现65岁以上人群、女性、接受或打算接受加强疫苗接种的人群以及患有2种或更多合并症的人群中行为改变更为明显。近一半的人在检测后寻求了医疗护理或治疗。这些发现支持继续投资于检测和诊断,以预防和减轻新冠病毒的传播,并强调检测和诊断作为医疗应对措施在大流行防范和应对中的作用的重要性。