Fix the one word that is used incorrectly Experts advise that all children receive a measles vaccination once between twelve and fifteen months and again between four and six years of age.

Advise = advice

Explanation:

A sentence can be defined as a group of words that comprises of both a subject and predicate used to convey a logical information. Sentences are classified into four (4) main categories and these includes;

I. Simple sentence.

II. Compound sentence.

III. Complex sentence.

IV. Compound-Complex sentence.

Sentences are classified into four (4) main categories based on their functions and these includes;

a. Declarative sentence.

b. Imperative sentence.

c. Exclamatory sentence.

d. Interrogative sentence.

In this scenario, the most appropriate word to use is advice but not advise.

An advice can be defined as a noun used as a recommendation or an opinion offered to someone as a course of action, guide, conduct et al.

On the other hand, an advise is a verb used in giving counsel to someone.

Generally, an advise simply means to give another person an advice.

Hence, the correct sentence would be;

"Experts advice that all children receive a measles vaccination once between twelve and fifteen months and again between four and six years of age."