Vaccination FAQs Index

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Vaccinations increase our ability to fight diseases that may be contagious or even fatal. Immunity occurs by getting the disease or through the use of a vaccine. There are two types of vaccine: inactivated vaccines and vaccines made from live, weakened viruses.

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    Related Diseases & Conditions

    • Headache Headaches can be divided into two categories: primary headaches and secondary headaches. Migraine headaches, tension headaches,...learn more »
      In This Article
      Headache Article
      • Headache facts
      • What is a headache?
      • How are headaches classified?
      • What are primary headaches?
      • What are secondary headaches?
      • What are cranial neuralgias, facial pain, and other headaches?
      • What causes tension headaches?
      • What are the symptoms of tension headaches?
      • How are tension headaches diagnosed?
      • How are tension headaches treated?
      • What causes cluster headaches?
      • What are the symptoms of cluster headaches?
      • How are cluster headaches diagnosed?
      • How are cluster headaches treated?
      • Can cluster headaches be prevented?
      • What diseases cause secondary headaches?
      • How are secondary headaches diagnosed?
      • What are the exams and tests for secondary headaches?
      • When should I seek medical care for a headache?
    • Pregnancy (Week By Week, Trimesters) There are many symptoms involved in the 1st, 2nd and 3rd trimesters of pregnancy. The first early pregnancy symptom is typically...learn more »
      In This Article
      Pregnancy (Week By Week, Trimesters) Article
      • Pregnancy facts*
      • Introduction
      • What is the first trimester (week 1-week 12)?
      • What is the second trimester (week 13-week 28)?
      • What is the third trimester (week 29-week 40)?
      • How will my baby develop week by week?
      • What are the changes that happen to a woman's body during her 1st, 2nd, and 3rd trimesters of pregnancy?
      • Body aches
      • Breast changes
      • Constipation
      • Dizziness
      • Fatigue, sleep problems
      • Heartburn and indigestion
      • Hemorrhoids during pregnancy
      • Itching
      • Leg cramps
      • Morning sickness
      • Nasal problems
      • Numb or tingling hands
      • Stretch marks, skin changes
      • Swelling
      • Urinary frequency and leaking
      • Varicose veins
    • Cervical Cancer Cervical cancer is cancer of the entrance to the womb (uterus). Regular pelvic exams and Pap testing can detect precancerous...learn more »
      In This Article
      Cervical Cancer Article
      • Cervical cancer facts*
      • What is the cervix?
      • What is cancer?
      • What are the risk factors and causes of cervical cancer?
      • What are the symptoms of cervical cancer?
      • How is cervical cancer diagnosed?
      • How is staging of cervical cancer determined?
      • What is the treatment for cervical cancer?
      • What are methods of treatment for cervical cancer?
      • How do I go about getting a second opinion?
      • What follow-up care is involved after cervical cancer treatment?
      • What support, research, and clinical trials information is available for cervical cancer patients?
    • Lyme Disease Lyme disease is a bacterial illness, which is spread by ticks when they bite the skin. Initially the disease affects the skin...learn more »
      In This Article
      Lyme Disease Article
      • Lyme disease facts
      • What is Lyme disease? What causes Lyme disease?
      • What is the history of Lyme disease?
      • What are risk factors for developing Lyme disease?
      • What are symptoms and signs of Lyme disease?
      • How do health-care professionals diagnose Lyme disease?
      • What is the treatment for Lyme disease, and what is its prognosis?
      • Is it possible to prevent Lyme disease? Is there a vaccine?
    • Allergy (Allergies) An allergy refers to a misguided reaction by our immune system in response to bodily contact with certain foreign substances. ...learn more »
    • Fever Although a fever technically is any body temperature above the normal of 98.6 degrees F. (37 degrees C.), in practice a person is...learn more »
      In This Article
      Fever Article
      • Aches, pain, fever facts
      • What is a fever?
      • What causes a fever?
      • What are the signs and symptoms of a fever?
      • How is a fever diagnosed?
      • How should I take a temperature for fever?
      • What is the treatment for a fever?
      • When should I seek medical care for a fever?
      • What are complications of a fever?
      • What is the prognosis for a fever?
      • What is the prevention for a fever?

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