Table 3 IgG and IgM immunofluorescence titres against SARS-CoV-2, from all patients

From: Virological assessment of hospitalized patients with COVID-2019

Patient ID no.

Initial serum

Final serum

 

Day after onset

IgG

Day after onset

IgG

IgM

PRNT90

PRNT50

1

5

<10

21

1,000

100

160

>640

2

4

<10

19

1,000

100

40

320

3

3

<10

23

1,000

100

160

>640

4

5

<10

17

10,000

<10

20

160

7

6

<10

20

10,000

100

>1,280

>1,280

8

6

10

20

10,000

10

80

>320

10

6

<10

28

1,000

10

10

>40

14

NA

NA

12

10,000

100

>40

>40

16

NA

NA

13

1,000

100

80

>320

  1. NA, not applicable; PRNT50, serum dilution that causes viral plaque reduction of 50%.