Infant health
Learning Center
Toddler speech development: What's typical for a 2-year-old?
A Mayo Clinic specialist describes typical speech development between the ages of 2 and 3.
Tonic-clonic (grand mal) seizure
Learn about this type of seizure that can cause convulsions. Also know how to help if you see someone having one.
Ventricular septal defect (VSD)
In this heart problem present at birth, there is a hole between the two lower heart chambers. Know the symptoms and when surgery is needed.
Vitamin D for babies: Are supplements needed?
A Mayo Clinic specialist explains why, when and how to give your baby vitamin D.
What is thirdhand smoke, and why is it a concern?
Tobacco smoke creates toxic residue that clings to walls, carpets, clothes and other surfaces.
Wheezing in children: Could it be asthma?
Wheezing in children may be a sign of asthma — but not always.
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