Test, validate and match regular expressions
Matches mentions of MERS and SARS coronaviruses in text, including the abbreviations 'MERS' or 'SARS', the full phrase 'Middle East Respiratory Syndrome' (with flexible whitespace), the virus designations 'SARS-CoV'/'MERS-CoV', and the plural 'coronaviruses'. Note that (es) is not optional, so singular 'coronavirus' alone won't match. Ideal for biomedical text mining, literature screening, and epidemiological surveillance of respiratory virus references.