20. Which of the following vaccines must remain frozen during transportation from the wholesaler?

Answer: A

Explanation:

Varicella vaccine must remain frozen during transportation from the wholesaler.

The Varicella vaccine is required to be kept frozen to maintain its efficacy during transportation from the wholesaler. This is crucial because exposure to temperatures outside the recommended range can lead to a loss of potency.

A) Varicella

This option is correct because the Varicella vaccine must be stored at freezing temperatures to ensure that it remains effective. If not kept frozen, the vaccine could degrade, rendering it less effective or ineffective for immunization.

B) Pneumococcal

The Pneumococcal vaccine does not require freezing during transportation. It can be stored at refrigerator temperatures (2°C to 8°C), making it less sensitive to temperature variations compared to the Varicella vaccine.

C) Influenza

The Influenza vaccine also does not need to be frozen during transport. Similar to the Pneumococcal vaccine, it should be kept refrigerated but does not require freezing, which distinguishes it from the Varicella vaccine.

D) Meningococcal

The Meningococcal vaccine does not need to remain frozen either. Like the other vaccines that do not require freezing, it can be safely transported and stored at refrigerator temperatures to maintain its effectiveness.

Conclusion

In summary, the Varicella vaccine is uniquely required to remain frozen during transportation, while the other options—Pneumococcal, Influenza, and Meningococcal vaccines—can be stored at refrigerator temperatures. This requirement for the Varicella vaccine is critical for maintaining its efficacy, highlighting the importance of proper vaccine storage protocols.