id author title date pages extension mime words sentences flesch summary cache txt cord-311114-ggcpsjk8 Radhakrishnan, Chandni Initial insights into the genetic epidemiology of SARS-CoV-2 isolates from Kerala suggest local spread from limited introductions 2020-09-09 .txt text/plain 4383 274 52 The rapid increase in the COVID-19 cases in the state of Kerala has necessitated the understanding of the genetic epidemiology of circulating virus, evolution, and mutations in SARS-CoV-2. The analysis identified 166 unique high-quality variants encompassing 4 novel variants and 89 new variants identified for the first time in SARS-CoV-2 samples isolated from India. Phylogenetic and haplotype analysis revealed that the circulating population of the virus was dominated (94.6% of genomes) by three distinct introductions followed by local spread, apart from identifying polytomies suggesting recent outbreaks. Further analysis of the functional variants revealed two variants in the S gene of the virus reportedly associated with increased infectivity and 5 variants that mapped to five primer/probe binding sites that could potentially compromise the efficacy of RT-PCR detection. In our analysis, we mapped the SARS-CoV-2 genetic variants obtained from Kerala genomes to the 132 primer or probes sequence and calculated the melting temperature (Tm) of the mutant with the wild type sequence. ./cache/cord-311114-ggcpsjk8.txt ./txt/cord-311114-ggcpsjk8.txt