Evaluating real-world data in COVID-19 antigen and PCR testing.

OBJECTIVE: COVID-19 testing is an important pillar in fighting the SARS-CoV-2 pandemic. Even though billions of tests have been conducted, little is known on performance of testing sites. This is a retrospective observational study with real-world data from a pharmacist-led COVID-19 testing center in Germany during the Omicron subvariant BA.4 and BA.5 wave in June 2022. MATERIALS: The rapid antigen tests employed were purchased from Anbio Biotechnology (Xiamen, China). The RT-PCR was performed on Egens YS-qPCR-1 real-time system with Kewei multiple real-time PCR kits for detection of SARS-CoV-2 (Beijing Kewei Clinical Diagnostic Reagent Inc., Beijing, China). METHODS: The study followed the STARD 2015 guideline. In this retrospective cohort study, the performance of testing sites was compared. RESULTS: During the study period, 7,112 patients were tested by rapid antigen tests and 1,025 RT-PCR tests conducted. Included were 233 patients who were referred by other testing sites for confirmation of positive results. A positive predictive value of 99.6% was calculated for the antigen tests in the pharmacist-led testing center. Referred positive patients from non-medical sites were antigen and RT-PCR negative in 16 cases, which led to a positive predictive value of 88.8%. Difference between site performance was statistically significant (p < 0.05). CONCLUSION: Results indicate that nucleic acid amplification confirmation is crucial in the context of the current testing strategy in Germany. Higher standards in antigen-testing, however, can make nucleic acid amplification in active COVID-19 infections unnecessary and testing cost efficient. This study provides the first data in the world on COVID-19 testing performance, and how it can be optimized.

COVID-19 vaccinations in German pharmacies: A survey on patient and provider satisfaction.

BACKGROUND: COVID-19 vaccinations applied in pharmacies can facilitate accessibility and potentially increase the vaccination rate but remain controversial in many countries. This study aimed to explore the patients' motivation to receive their COVID-19 vaccination in a pharmacy and examine patient and provider satisfaction with this novel service. METHODS: The study was designed as an explorative cross-sectional multicenter in-house quantitative survey and was conducted during the first weeks of COVID-19 vaccinations in German pharmacies from February to April 2022. The survey consisted of a paper-based questionnaire with scaling questions, multiple choice questions and open questions. Patients were recruited consecutively before their vaccination and completed the survey directly after the service. Vaccinating pharmacists were also invited to answer a questionnaire on their experiences, motivation and expectations. RESULTS: A total of 427 questionnaires out of 11 pharmacies were be included. The overall patient satisfaction with vaccinations in pharmacies was rated with the highest remarks by 91.5% of the participants, another 7.8% were fairly satisfied. Patient satisfaction with scheduling, waiting time, information, hygiene, vaccination technique and a feeling of safety was very high (96.5-97.9%). Patients' motivation on COVID-19 vaccination was to prevent severe COVID-19 symptoms (88.9%) and to protect others (72.3%). Easy accessibility, low barriers and proximity were other reasons for utilizing this service, mentioned by 61.8% of the patients. Pharmacists were highly motivated and found the task meaningful but experienced considerable personnel shortage. General practitioners rather expressed relief on their workload. CONCLUSIONS: Data of this study strongly supports to include pharmacies as additional providers of COVID-19 vaccinations. Patients stated marked satisfaction with this setting and expressed a feeling of safety and trust. Whereas most patients may have utilized the service for convenience, easy accessibility and low barriers were appreciated and can potentially contribute to higher vaccination rates.