Background Since information on the pathology of COVID-19 from sub-Saharan Africa (SSA) remains scarce, the objective of our study was to define the gross pathology and histological features of COVID-19. We report data from 29 whole-body autopsies of COVID-19 deaths occurring in hospitals in Lusaka, Zambia - the first large autopsy case series from Africa. Methods We performed a descriptive post-mortem examination study of inpatient COVID-19 related deaths at two hospitals in Lusaka, Zambia. Whole-body autopsies were conducted according to Standard Operating Procedures. Gross and histopathological examinations of all organs were performed. Patient demographics, history, co-morbidities, autopsy gross and microscopic findings, and cause(s) of death were recorded and analyzed using STATA version 14. Variables were grouped and presented as frequencies and percentages. Findings Autopsies were performed on 29 decedents (mean age = 44 ± 15.8years; age range = 19-82; 17/29 [58.8%] males). 22/29 [75.9%] cases were <55 years of age. A spectrum of pathological manifestations of COVID-19 were seen in all organs. The commonest causes of death were pulmonary thromboembolism (13/29, 45%), Diffuse Alveolar Damage (9/29, 31%), and COVID-19 pneumonia (7/29, 25%). 22/29 (76%) had co-morbidities. Common co-morbidities included HIV (8/29, 28%), Hypertension (6/29, 20%) Tuberculosis (3/29, 10%), Diabetes (3/29, 10%). Conclusions A spectrum of gross anatomical and histopathological findings are seen in COVID-19 deaths in hospitalized decedents. These appear broadly similar to those reported from China, Europe and USA. Differences include a younger age group, and co-morbidities of HIV and TB co-infection which require further investigation.

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Although forensic pathology is less visible on the front lines of public health, it plays a significant role in safeguarding public health by investigating and identifying unusual infectious disease deaths such as those caused by COVID-19. Given that forensic pathology is responsible for investigating deaths that are sudden, unexplained, or unattended by a physician, its participation in mortality and disease surveillance contributes data useful to clinicians and epidemiologists. The data provides demographic details, the extent of disease, and causes of death. Utilizing forensic pathology data provides a wealth of information that helps understand the Covid-19 disease and inform public health policy. This paper aims to describe the role of forensic pathology in the COVID-19 pandemic era in Zambia.With the confirmation of the first COVID-19 cases in Zambia, the forensic pathology service developed a screening tool for probable detection of COVID-19 infections in brought-in-dead cases undergoing forensic autopsies at the University Teaching Hospital. The screened cases were tested for COVID-19. Notably, most of the COVID-19 deaths recorded in Zambia are from the BID that were tested.During the COVID-19 pandemic, autopsies were conducted using forensic pathology principles to determine the cause of death and document the extent of disease, thus contributing to the body of knowledge in public health and infectious disease science COVID-19.In conclusion, the forensic pathology service has contributed to the management of patients infected with COVID-19. It has also been useful to public health through mortality and disease surveillance of broughtin- dead cases. Powered

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