| Id |
Subject |
Object |
Predicate |
Lexical cue |
| T62 |
0-117 |
Sentence |
denotes |
Serum samples were collected from the index case on Days 4, 9, 10 and 20 from onset of the first symptoms (Figure 1). |
| T63 |
118-403 |
Sentence |
denotes |
Presence of serum IgM and IgG antibodies against SARS-CoV-2 was analysed by immunofluorescence assays (IFA) based on Vero E6 cells infected with passage 4 of the patient’s isolate SARS-CoV-2/Finland/1/2020 virus and transferred onto microscope slides and fixed with acetone (Figure 2). |
| T64 |
404-509 |
Sentence |
denotes |
Serum samples from the index case were serially diluted and incubated for 2 h for IgM and 30 min for IgG. |
| T65 |
510-620 |
Sentence |
denotes |
Antibodies were visualised with fluorescein isothiocyanate (FITC)-conjugated anti-human IgM or IgG antibodies. |
| T66 |
621-794 |
Sentence |
denotes |
While the antibodies were undetectable on Day 4 after onset of symptoms, IgG titres rose to 80 and 1,280 and IgM titres to 80 and 320 on Days 9 and 20, respectively (Table). |
| T67 |
795-944 |
Sentence |
denotes |
Random serum samples from staff members of the University of Helsinki (n = 19) did not show specific binding at dilutions greater than 20 (Figure 2). |
