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How Were the COVID-19 Vaccines Made So Fast? Vaccines for COVID-19 are now widely available. In the past, it’s taken many years to create a vaccine that’s ready for public use. But over decades of creating vaccines, research groups and public health agencies have been making the

Infectious Mononucleosis (Mono) What is infectious mononucleosis (mono)? Infectious mononucleosis is a type of infection. It causes swollen lymph glands, fever, sore throat, and often extreme fatigue. It's often spread through contact with infected saliva from the mouth. Symptoms

IgA Vasculitis in Children What is IgA vasculitis in children? IgA vasculitis is also called Henoch-Schönlein purpura. It's not contagious. It involves swelling (inflammation) of small blood vessels. The swollen blood vessels leak into the skin, joints, intestines, and kidneys

Fetal Alcohol Spectrum Disorder (FASD) What is fetal alcohol spectrum disorder (FASD)? A baby born to a person who drinks alcohol during pregnancy can have many problems. This is called fetal alcohol spectrum disorder (FASD). FASD includes: Fetal alcohol syndrome (FAS). This is

Insomnia What is insomnia? You've likely had nights when you couldn't fall asleep, no matter how desperately you tried. When you can't sleep, the ticking of the clock only reminds you of your exhaustion and the endless hours until morning. And perhaps you finally drop off around

Meckel Diverticulum What is Meckel diverticulum? Meckel diverticulum is a small pouch in the lower wall of the small intestine. The normal intestine does not have a pouch. It's near where the small and large intestines meet. The pouch is left over from when your child's digestive

Stridor in Children What is stridor in children? Stridor is a noisy or high-pitched sound with breathing. It's a sign that the upper airway is partially blocked. It may involve the nose, mouth, throat, voice box (larynx), or windpipe (trachea). What causes stridor in a child

Pharyngitis and Tonsillitis in Children What are pharyngitis and tonsillitis in children? Pharyngitis is redness, pain, and swelling of the throat (pharynx). Tonsillitis is inflammation of the tonsils. The tonsils are a pair of tissue masses on both sides at the back of the

Congenital Hypothyroidism in Children What is congenital hypothyroidism? When the thyroid gland doesn't make enough thyroid hormone, it's called hypothyroidism. Congenital hypothyroidism is when the disorder is present in a baby at birth. If not treated, it can lead to serious

Gastrointestinal Problems What might gastrointestinal problems mean in a newborn? A newborn's ability to eat and digest food is essential to growth and development. Most babies are able to absorb nutrients and have normal bowel movements after being fed. Gastrointestinal problems