SARS-CoV-2 Theta variant

[2] It is distinct from those first discovered in the United Kingdom, South Africa, and Brazil, and is thought to pose a similar threat.

[6] A total of 14 amino acid replacements were observed in all samples (labeled in red below), including seven spike protein mutations.

Three other mutations were seen in 32 of the 33 samples (labeled in green) including a three-amino acid deletion at the spike protein positions 141 to 143.

[8] On February 18, 2021, the Department of Health of the Philippines confirmed the detection of two mutations of COVID-19 in Central Visayas after samples from patients were sent to undergo genome sequencing.

[10] On March 17, 2021, the United Kingdom confirmed its first two cases, where Public Health England (PHE) termed it VUI-21MAR-02.