Table 5 Keywords used to sample COVID-19 specific listings from the DWMs in Table 2

First set of keywords checked against the words included in the attribute “Listing body” in Table 4

corona virus, coronavirus, covid, covid-19, covid19

Second set of keywords checked against the words included in the attribute “Listing title” in Table 4

anakinra, antidote, antiviral, azithromycin, baloxavir, baricitinib, bemcentinib, chloroquin,

corona virus, coronavirus, covid, covid-19, covid19, darunavir, dexamethason, diagnosis,

diagnostic, favipiravir, ganciclovir, glove, gown, lopinavir, marboxil, mask, n95, n99,

oseltamivir, prevention, remdesivir, repurposed, ribavirin, ritonavir, sanitiser,

sanitizer, sarilumab, siltuximab, surgical, thermo scanner, thermo-scanner,

thermometr, thermoscanner, tocilizumab, umifenovir, vaccine, ventilator, ciprofloxacin,

doxyciclin, metronidazol, amoxicillin