Classify the given piece of text as either a news article or an opinion article
Dr. Johnson believes vaccinations are essential for protecting children from many deadly diseases.
Opinion article.
Complete the following task based on the instruction and optional input provided.### Instruction:
Classify the given piece of text as either a news article or an opinion article

### Input:
Dr. Johnson believes vaccinations are essential for protecting children from many deadly diseases.

### Output:
Opinion article.