In Australia it's 35-45.
Each amplification reaction is known as a cycle, and usually 35-45 cycles are undertaken
Any thing over 25-30 is completely ambiguous. In the first place, the PCR test is incapable of determining covid-19. All it determines is that certain viral remnants have been detected. This could be any virus similar to Covid including influenza.
The Australian government is running a massive fraud operation with 35 -45 cycles.
(post is archived)