Effectiveness of an institutional COVID-19 central sampling team during pandemic at a tertiary care centre.

Abstract

An efficient sampling is one of the key methods to identify all those affected by coronavirus disease 2019 (COVID-19). To analyze how efficient setting up of a central sampling team would be to prevent any outbreak within the institution by minimizing the movement of suspected COVID-19 patients admitted in the inpatient wards. The secondary objective was to train maximum resident doctors to collect samples of admitted patients. A central sampling team comprising of resident doctors from various departments was made who did sampling of the suspected COVID-19 inpatients admitted under various specialties. There were a total of 341 patients [209 males (61.29%), 132 females (38.7%)] and 335 patients underwent sampling. There was a positive correlation between: (1) number of calls from a department vs percentage of positive samples in that department [Pearson correlation coefficient (R) = 0.47; <i>P</i> = 0.026], (2) number of samples taken by resident of a particular department from central sampling team vs number of positive samples taken by resident of that department [R = 0.8739, <i>P</i> = 0.01] and (3) number of visits to a department vs number of residents trained in that department [R = 0.93; <i>P</i> = 0.00001]. Formulation of a central sampling team led to changes like a separate donning and doffing area in each ward and training of many resident doctors posted in different wards. This made each ward self-sufficient in collection of samples. This venture also ensured minimal movement of suspected COVID-19 patients in the hospital and thus least exposure to the hospital staff.