3 ms·

Google "PCR false positive" "PCR false negative" for some sources. Also, there's the whole cycle issue, by changing the number of cycles, you can switch between

Google "PCR false positive" "PCR false negative" for some sources. Also, there's the whole cycle issue, by changing the number of cycles, you can switch between a pandemic and endemic situation almost at will.

hef19898 5y ago
Every test has false positives and false negatives. From pregnancy tests to HIV tests. Doesn't mean the test is unreliable, does it? No idea what your second point is supposed to be about.
- atatatat 5y ago
  Depends on your standard for reliable.