KLK3 and prostate carcinoma: The total number of test requests for prostate cancer screening (PSA) in 2020 was the same as the previous four years; however, there was a maximal decline of 62% for PSA test requests during the lockdown period. The opposite trend (an increase in test requests) was seen for the rest of the period. After the lockdown, there was an increase of 43% in PSA test requests.