1729-519X

1729-519X

S1729-519X2021000300003

Cuba

Cuba

Cuba

00 06 2021

00 06 2021

20 3

1

2020 579

265-9

2

2020 2 2 2

1-5

3

World Health Organization 2020

4

2020 323 11 11

1061-9

5

2020 58

6

2020 58 58

7

2020 9 1 1

747-56

8

2020 20

9

2020 323 18 18

1843-4

10

2020 7

11

2020 14 3 3

316-20

12

2020 99 5 5

481-7

13

2020 323 15 15

1502-3

14

2020 99

374-80

15

World Health Organization 2020

16

2020 17 7 7

2225

17

Center for Disease Control and Prevention 2020

18

2020 81 2 2

e145-7

19

2020 81 2 2

e148-9

20

2020 58 8 8

21

2020