Discuss the concept of herd immunity and its importance in creating and maintaining a healthy population
What will be an ideal response?
Herd immunity results when a large enough percentage of a population has immunity to a pathogen that the pathogen can no longer spread and be maintained in a population. Herd immunity can protect those members of the population who cannot be immunized (neonates, pregnant women, immunosuppressed, and so forth) from infection. Highly successful application of the principle of herd immunity may result in the eradication of a pathogen when that pathogen infects only one species. Smallpox is the first pathogen to be successfully eradicated. Eradication of polio is nearing success.
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Fill in the blank with the appropriate word.
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a. True b. False Indicate whether the statement is true or false
What tissue in the gastrula gives rise to muscle?
A) ectoderm B) mesoderm C) endoderm D) gastrula
If the women of Transylpolkonia traditionally delay having their first child until they are in their late 30s but the women of Chaldokia normally start their families in their teens, which nation will be more likely to have an increasing population?
What will be an ideal response?