context: At the Tenth International Medical Congress held in 1890 in Berlin, Koch unexpectedly introduced a cure for tuberculosis, which he called tuberculin.
source: The public trusted the famous physician and reacted enthusiastically.
reference_original: El público confió en el famoso médico y reaccionó con entusiasmo.
reference_flipped: El público confió en la famosa médica y reaccionó con entusiasmo.