A patient resistant to all known first- and second-line TB drugs is classified as having XXDR-TB.
A former student of Apeejay School in Nerul, Radhakrishnan first fell ill in May last year when he complained of fever, and was diagnosed with tuberculosis a month later.
“The steroids he was prescribed suppressed his immunity. He also had other complications related to meningitis,” said his father R Radhakrishnan.
Doctors at PD Hinduja in Mahim, which had announced in January that it had detected 12 cases of totally drug-resistant (TDR) tuberculosis, confirmed Radhakrishnan had XXDR-TB. He was discharged from the hospital on November 30 after a prolonged stay.