The query was prompted by the fact that doctors in Taiwan had heard from Chinese doctors that some medical staff were also infected,[failed verification] which would be evidence of human-to-human transmission if true.[74][75][76][77] On January 10 and 11, the WHO asked clinicians and public health officials to be alert to signs of human-to-human transmission.[78] Trump later claimed the December email "(alerted WHO) to the possibility that coronvirus could be transmitted between humans" and was ignored; however, The Guardian reports that the December email did not in fact contain new information.[79]