Correction..have done the GRU airport PCR test, 2 days ago. it costs 350 reals.. queue time 2 hours, result time, exactly 4 hours ( not 2 or 3)..ensure u have at least 7 hours between flights, if u want the PCR test at GRU and 8 hours if 2nd flight is not from terminal 3.
best strategy is to...