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Table 2 Detection of SARS-CoV-2 and specific antibody levels in all COVID-19 patients (n = 36)

From: Shedding of infectious SARS-CoV-2 by hospitalized COVID-19 patients in relation to serum antibody responses

ID SARS-CoV-2 PCR
(Ct value)
SARS-CoV-2 culture Anti-SARS-CoV-2 IgG titers Neutralizing antibody titers Days after onset of symptom
NPH Sputum serum NPH Sputum
1 19 21 neg pos pos < 20 < 10 16
2 24 28 neg pos neg < 20 < 10 9
3a 25 19 neg pos neg 40 < 10 9
4a 26 20 neg pos neg 40 10 11
5 32 24 neg neg neg 40 10 9
6 neg 23 neg neg neg 40 10 10
7d 33 n/a neg neg n/a 320 10 9
8b 28 37 38 neg neg 160 15 10
9 neg n/a neg neg n/a 320 30 11
10 neg neg neg neg neg 640 30 12
11 neg n/a neg neg n/a 40 40 10
12a 33 n/a neg neg n/a 1280 40 11
13 34 32 neg neg negf 1280 40 20
14a 28 n/a neg neg neg 640 60 14
15 neg 31 neg neg neg 640 60 18
16 35 neg neg neg neg 1280 60 15
17 35 neg 36 neg neg 1280 60 48
18a 30 29 neg neg neg 2560 60 28
19a neg neg neg neg nege 2560 60 30
20 neg 36 neg neg neg 640 80 53
21 neg 34 neg neg neg 1280 80 43
22c neg neg 38 neg neg 2560 80 18
23a,d 26 20 neg neg neg 320 120 9
24 neg 36 neg neg neg 2560 120 39
25 neg neg neg neg neg 2560 120 18
26a neg neg neg neg neg 2560 120 21
27a neg neg neg neg neg 1280 160 21
28 neg 27 neg neg neg 1280 160 43
29a neg neg neg neg n/a 1280 240 21
30 neg 28 neg neg neg 1280 240 14
31 neg 28 neg neg nege 1280 240 27
32 neg neg neg neg neg 2560 240 20
33 neg neg neg neg neg 2560 240 37
34a,b neg n/a neg neg n/a 1280 320 22
35 neg 32 neg neg neg 2560 320 19
36a neg neg neg neg neg 1280 560 26
  1. Abbreviation: neg negative, NPH nasopharynx, pos positive
  2. atreatment with corticosteroids, btreatment with tociluzimab, ctreatment with anakinra, dremdesivir treatment
  3. ePositive for herpes simplex 1 in PCR
  4. fPostive CPE in culture, negative for SARS-CoV-2, herpes simples 1 and 2, cytomegalovirus, adenovirus, bocavirus, enterovirus, metapneumovirus, parainfluenzavirus and rhinovirus