Glaucoma affects ________.

Which of the following statements are true about croup? 1. Caused by viral organism 2. Most common form of airway obstruction in children aged 6 months to 6 years 3. Causes subglottic swelling and obstruction 4. Most often caused by parainfluenza virus

a. 1 and 3 only b. 2, 3, and 4 only c. 3 and 4 only d. 1, 2, 3, and 4

Lactobacilli is an acidogenic bacteria. Name another cariogenic species

A) S. lamina B) S. pellicle C) S. Mutans D) S. coli