Read the following passage and answer the questions based on the passage:
Universal immunization campaigns have eradicated or controlled fatal conditions such as smallpox and polio. Mass immunization relies on cold-chain availability: vaccines have to be stored at precise temperatures from manufacturing through inoculation.
Solar-powered refrigerators and insulated containers are lifelines for remote locations. Door-to-door interactions by community health workers educate households regarding dosage routines and myths. Vaccine hesitancy fueled by misinformation is also a major obstacle to herd immunity. Campaigns of public education-capitalizing on radio, social media, and school initiatives-seek to revive public faith in science. Preserving accessibility and communication in an open nature is crucial in order to secure public health.
What does “cold-chain logistics" refer to in the passage?
Show answer & explanation
Correct answer: A
Explanation
In the context of the text, "cold-chain" refers to the system of storing and transporting vaccines at precise, controlled temperatures from the point of manufacture until they are administered.
The passage mentions that vaccines must be kept in solar-powered refrigerators and insulated containers, highlighting the importance of temperature maintenance for vaccine efficacy.