Which of the Following Diseases Does NOT Currently Have an Effective

question 4

Multiple Choice

Which of the following diseases does NOT currently have an effective vaccine?

• A)Chicken pox
• B)Polio
• C)HIV
• D)Smallpox
• E)Diptheria

---

Definitions:

Addition

A mathematical operation that represents combining numbers or quantities to get a total sum.

Visible to Others

The concept or state of being able to be seen or perceived by others, often used in contexts related to privacy, social presence, or online visibility.

Irreversibility

A stage in cognitive development where a child believes that actions cannot be undone or returned to their original state.

Precausal Thinking

A cognitive process observed in young children where reasoning is not based on logical causality, but on intuition or superficial associations.