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Table 10 Comparasion of the Pfizer and AstraZeneca vaccination centers during the handling and storage process*

From: Vaccination process evaluation at COVID-19 vaccination centers in Lebanon: a national study

Questions

PZ N = 20 (%)

AZ N = 13 (%)

Total vaccines N = 33 (%)

P-value

1. Upon arrival at the VC, vaccines are immediately unpacked and placed in proper storage equipment (i.e., a portable vaccine refrigerator or qualified container)

 Yes

20 (100.0)

13 (100.0)

33 (100.0)

–

2. Vaccine vials are kept inside their boxes

 No

1 (5.0)

0 (0.0)

1 (3.0)

0.698

 Yes

17 (85.0)

13 (100.0)

30 (90.9)

 Not observed

2 (10.0)

0 (0.0)

2 (6.1)

3. Upon arrival at the VC, expiry dates of vaccines are checked

 Yes

20 (100.0)

13 (100.0)

33 (100.0)

–

4. Before preparation, vaccines are stored based on the manufacturer-recommended temperature range (between + 2 °C and + 8 °C)

 No

1 (5.0)

2 (15.3)

3 (9.1)

0.479

 Yes

17 (85.0)

11 (84.6)

28 (84.8)

 Not observed

2 (10.0)

0 (0.0)

2 (6.1)

5. How often is this temperature of the storing refrigerator monitored?

 Once daily

5 (25.0)

4 (30.8)

9 (27.3)

0.554

 Twice daily

2 (10.0)

3 (23.1)

5 (15.2)

 Several times per day

13 (65.0)

6 (46.2)

19 (57.6)

6. Temperature of the storing refrigerator is tracked via a temperature data logger or an alarm system

 No

2 (10.0)

1 (7.70)

3 (9.1)

1.0

 Yes

18 (90.0)

12 (92.30)

30 (90.9)

7. In case of power outage, there is backup power sources

 Yes

20 (100.0)

13 (100.0)

33 (100.0)

–

8. At the VC, there are no other items stored in the same refrigerator with vaccine vials

 No

5 (25.0)

7 (53.8)

15 (45.4)

0.329

 Yes

12 (60.0)

5 (38.5)

14 (42.4)

 Not observed

3 (15.0)

1 (7.7)

4 (12.2)

9. Un-reconstituted vials are stored between + 2 °C and + 8 °C in the refrigerator for up to 1 month (31 days)

 Yes

20 (100.0)

–

20 (100.0)

–

10. Unopened vials may be stored between + 2 °C and + 8 °C in the refrigerator for a maximum of 6 months

 Yes

–

13 (100.0)

13 (100.0)

–

11. In case of expired or defective vaccines and diluents, the manufacturer/Distributor is contacted

 No

1 (5.0)

0 (0.0)

1 (3.0)

1.0

 Yes

19 (95)

13 (100.0)

32 (97.0)

  1. *Statistical tests used included Pearson’s Chi-squared test or Fisher’s exact test