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Table 2 Interval days from date of arrival to date of symptom onset of malaria reported in Shanghai, 2020–2021

From: An epidemiological analysis of imported malaria in Shanghai during a COVID-19 outbreak

Interval (days)

(n = 112)

P. falciparum

%

P. vivax

%

P. ovale

%

P. malariae

%

Total

%

< 0

8

8.25

0

0.00

0

0.00

0

0.00

8

7.14

0–14a

87

89.69

3

75.00

5

62.50

2

66.67

97

86.61

15–21b

2

2.06

0

0.00

0

0.00

1

33.33

3

2.68

91–180

0

0.00

0

0.00

2

25.00

0

0.00

2

1.79

181–360

0

0.00

1

25.00

1

12.50

0

0.00

2

1.79

  1. aThe centralized isolation period of COVID-19 prevention and control
  2. bThe health monitoring period of COVID-19 prevention and control