Bulgaria‘s National Center for Infectious and Parasitic Diseases (NCIPD) announced on Nov. 25 that it had completed sequencing 554 samples from Covid-19 patients in the country, all of which have the Delta variant.
The samples were taken from October 13th to November 11th and came from 23 of the 28 counties in Bulgaria.
By November 15, 20 patients in the NCIPD sample group had died, 97 were hospitalized, 428 were being treated at home, and nine had recovered.
NCIPD said 117 cases it sequenced together showed the Delta strain of the virus intended B.1.617.2 from the World Health Organization.
The other cases have been assigned to separate individual lineages of this variant, with the most numerous AY.43 (107), AY.9.2 (74), AY.4 (56), AY.4.4 (41), AY.98 (36), AY .4.2 and AY.9 (20 each). In the remaining 83 samples, 20 further sub-variants were sequenced.
Most of the samples came from the city of Sofia (96), followed by the districts of Burgas (85), Rousse (53), Plovdiv (51), Turgovishte (47) and Stara Zagora (44).
(Photo: Military Medical Academy)
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