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. 2021 Dec 28:1–26. doi: 10.1080/08830185.2021.2019727

Table 1.

SARS-CoV-2 reinfections cases in india and their clinical characteristics.

S.No. References (Age/Sex) Comorbidity Clinical symptoms of first infection Clinical symptoms of reinfection Confirmed reinfection (PCR/Antibody) Intervening period (Days) Sequencing Data (Genetic Variants)
1 (193) 52/M None Asymptomatic low-grade fever and body ache RT PCR 73 clade from the first episode = 19A
clade from the second episode = 20A
2 (39) 47/M None Asymptomatic
(civil official)
Mild (fever, cough, and malaise) RT PCR 39 15 and 17 genetic variants in the genomes from the two episodes, respectively, of which 14variants were common between the two episodes. 22882T > G (Spike: N440K) variant in the genomes isolated from both episodes of infection
3 Patient 1, (178) 27/M None Sore throat, rhinitis (2 days) Cough, fever, myalgia (1 week) RT PCR 65 clade from the first episode = 20A
clade from the second episode = 19A
4 Patient 2, (178) 31/M None asymptomatic Myalgia, malaise (2 days) RT PCR 64 clade from the first episode = 20B
clade from the second episode = 20B
5 Patient 3, (178) 24/F None Sore throat, rhinitis, Myalgia
(5 days)
Sore throat, rhinitis, Myalgia, Cough, fever (3 weeks) RT PCR 54 clade from the first episode = 19A
clade from the second episode = 20B
6 Patient 4, (178) 51/F Controlled hypertension Fever, myalgia, dry cough (1 week) Fever, myalgia, dry cough, nausea, abdominal pain, breathlessness (6 weeks) RT PCR 136 clade from the first episode = 19A
clade from the second episode = 20B
7 Patient 1, (195) 61/M None Asymptomatic Weakness, cough (2 days) RT PCR 75 10 unique variations between the viral genomes of both episodes (no variation in spike protein)
8 Patient 2, (195) 38/M Steroid usage (TB meningitis) Hospitalized with headache and fever (1 day) Fever (5 days) RT PCR 18 3 unique variations between both episodes ( one synonymous mutation in spike protein)
9 Patient 1 (194) 25/M None Asymptomatic (Health care worker) Asymptomatic
(Health care worker)
RT PCR 108 9 unique variant differences between first and second episode of infection.
10 Patient 2, (194) 28/F None Asymptomatic
(Health care worker)
Asymptomatic
(Health care worker)
RT PCR 111 10 unique variant differences between first and second episode of infection.
Genetic variation 22882T > G (S:N440K) within the receptor binding domain found in reinfection.
11 Patient 1,(196) 18/F Had PTB 5yrs ago Fever, Cough
(5 days)
High grade fever, cough, dyspnea (2 days) RT PCR 5 Not sequenced
12 Patient 2, (196) 78/M Coronary Artery disease Fever, Cough
(5 days)
Fever, Cough Dyspnea (1 day) RT PCR 43 Not sequenced
13 Patient 3, (196) 42/M None Fever, Cough Dyspnea (4 days) High grade fever and worsened dyspnea RT PCR 4 Not sequenced
14 Patient 4, (196) 25/F None Asymptomatic Fever, Cough
(2 days)
RT PCR 6 Not sequenced
15 Patient 5, (196) 64/M None Fever, Cough
(2 days)
Fever, Cough Dyspnea (3 days) RT PCR 17 Not sequenced

Abbreviations: M, Male; F, Female; RT, Real-time (RT-PCR).