Of particular note to researchers investigating the Covid-19 pandemic is the availability of these strings:

 
CUI|SAB|STR

C5203670|MSH|2019 novel coronavirus disease
C5203670|MSH|2019 novel coronavirus infection
C5203670|MSH|2019-nCoV disease
C5203670|MSH|2019-nCoV infection
C5203670|MSH|COVID-19
C5203670|MSH|COVID-19 pandemic
C5203670|MSH|COVID19
C5203670|MSH|coronavirus disease 2019
C5203670|MSH|coronavirus disease-19
C5203670|MTH|COVID-19
C5203670|SNOMEDCT_US|Disease caused by 2019 novel coronavirus
C5203670|SNOMEDCT_US|Disease caused by 2019 novel coronavirus (disorder)
C5203670|SNOMEDCT_US|Disease caused by 2019-nCoV
C5203670|SNOMEDCT_US|Disease caused by Wuhan coronavirus
C5203671|MTH|Suspected COVID-19
C5203671|SNOMEDCT_US|Suspected disease caused by 2019 novel coronavirus
C5203671|SNOMEDCT_US|Suspected disease caused by 2019 novel coronavirus (situation)
C5203671|SNOMEDCT_US|Suspected disease caused by 2019-nCoV
C5203671|SNOMEDCT_US|Suspected disease caused by Wuhan coronavirus
C5203672|MTH|SARS-CoV-2 vaccination
C5203672|SNOMEDCT_US|2019 novel coronavirus vaccination
C5203672|SNOMEDCT_US|2019 novel coronavirus vaccination (procedure)
C5203672|SNOMEDCT_US|2019-nCoV vaccination
C5203672|SNOMEDCT_US|Wuhan coronavirus vaccination
C5203673|MTH|Antigen of SARS-CoV-2
C5203673|SNOMEDCT_US|Antigen of 2019 novel coronavirus
C5203673|SNOMEDCT_US|Antigen of 2019 novel coronavirus (substance)
C5203673|SNOMEDCT_US|Antigen of 2019-nCoV
C5203673|SNOMEDCT_US|Antigen of Wuhan coronavirus
C5203674|MTH|Antibody to SARS-CoV-2
C5203674|SNOMEDCT_US|Antibody to 2019 novel coronavirus
C5203674|SNOMEDCT_US|Antibody to 2019 novel coronavirus (substance)
C5203674|SNOMEDCT_US|Antibody to 2019-nCoV
C5203674|SNOMEDCT_US|Antibody to Wuhan coronavirus
C5203675|MTH|Exposure to SARS-CoV-2
C5203675|SNOMEDCT_US|Exposure to 2019 novel coronavirus
C5203675|SNOMEDCT_US|Exposure to 2019 novel coronavirus (event)
C5203675|SNOMEDCT_US|Exposure to 2019-nCoV
C5203675|SNOMEDCT_US|Exposure to Wuhan coronavirus
C5203676|MSH|2019 novel coronavirus
C5203676|MSH|2019-nCoV
C5203676|MSH|COVID-19 virus
C5203676|MSH|COVID19 virus
C5203676|MSH|SARS-CoV-2
C5203676|MSH|SARS2
C5203676|MSH|Wuhan coronavirus
C5203676|MSH|Wuhan seafood market pneumonia virus
C5203676|MSH|coronavirus disease 2019 virus
C5203676|MSH|severe acute respiratory syndrome coronavirus 2
C5203676|MTH|SARS-CoV-2
C5203676|SNOMEDCT_US|2019 novel coronavirus
C5203676|SNOMEDCT_US|2019 novel coronavirus (organism)
C5203676|SNOMEDCT_US|2019-nCoV
C5203676|SNOMEDCT_US|Wuhan coronavirus