Updated Apr 13, 2021 | 14:51 IST
Doctors treating COVID-19 patients are continuously on their toes as they find that in some cases the virus is not traced in several RTPCR tests despite the patient showing all symptoms. RTPCR Tests 
Key Highlights
The mutated variants of the novel coronavirus contagion that are now circulating in the second wave continue to throw more challenges to the treating doctors in treating the afflicted patients.
It is now observed that whether deadly or not, these variants are not just highly virulent but also seem to be operating in a stealth mode.
Doctors are finding that RTPCR tests run on a number of patients are showing up as false negatives as the evasive virus escapes detection.
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