Who needs a flu shot? How long is mono contagious? This section has tons of articles about infections that teens can get, with information about how they're spread, signs and symptoms, when to go to the doctor, and more.

Bacteria & Viruses

• Bacterial Vaginosis
• Cellulitis
• Cholera
• Cold Sores (HSV-1)
• Coping With Colds
• Dengue Fever
• Diarrhea
• E. Coli Infections: Diarrhea
• Encephalitis
• Fighting Germs
• Flu Facts
• Food Poisoning
• Hepatitis A
• Hepatitis B
• Hepatitis C
• How Can I Prevent Lyme Disease?
• How Long Is Mono Contagious?
• Impetigo
• Lyme Disease
• MRSA
• Meningitis
• Molluscum Contagiosum
• Osteomyelitis
• Peritonsillar Abscess
• Pinkeye (Conjunctivitis)
• Pneumonia
• PrEP (Pre-Exposure Prophylaxis)
• Rocky Mountain Spotted Fever
• Salmonellosis
• Sinusitis
• Skin Abscesses
• Smallpox
• Strep Test (Video)
• Strep Throat
• Swimmer's Ear (External Otitis)
• Tetanus
• Tonsillitis
• Toxic Shock Syndrome
• Urinary Tract Infections
• Warts
• What's the Difference Between Infectious and Contagious?

Colds & Flu

• 5 Tips for Surviving Shots
• 5 Ways to Fight the Flu
• Coping With Colds
• Flu Center
• Flu Facts
• Germs: Bacteria, Viruses, Fungi, and Protozoa
• I'm Pregnant. Should I Get a Flu Shot?
• Sinusitis
• The Flu Vaccine
• When Can I Go Back to School If I Have the Flu?

Common Infections

• 5 Ways to Fight the Flu
• Adenoids and Adenoidectomy
• Cold Sores (HSV-1)
• Coping With Colds
• Flu Facts
• Head Lice
• How Long Is Mono Contagious?
• Ingrown Toenails
• Mononucleosis (Mono)
• Pinkeye (Conjunctivitis)
• Sinusitis
• Tonsillectomy
• Tonsillitis
• Urinary Tract Infections
• What's the Difference Between Infectious and Contagious?

Fungal Infections

• Athlete's Foot
• Fighting Germs
• Jock Itch
• Pityriasis Versicolor
• Ringworm
• Vaginal Yeast Infections
• What's the Difference Between Infectious and Contagious?

Stomach & Intestinal Infections

• Diarrhea
• E. Coli Infections: Diarrhea
• Food Poisoning
• Salmonellosis
• Stomachaches
• What's the Difference Between Infectious and Contagious?

Skin Infections & Rashes

• Athlete's Foot
• Bedbugs
• Cellulitis
• Cold Sores (HSV-1)
• Eczema
• Head Lice
• How Can I Prevent Lyme Disease?
• Impetigo
• Jock Itch
• Lyme Disease
• Molluscum Contagiosum
• Pityriasis Versicolor
• Ringworm
• Rocky Mountain Spotted Fever
• Skin Abscesses
• Smallpox
• Toxic Shock Syndrome
• What's the Difference Between Infectious and Contagious?

Sexually Transmitted Diseases

• Bacterial Vaginosis
• Chlamydia
• Fighting Germs
• Genital Herpes
• Genital Warts (HPV)
• Gonorrhea
• HIV and AIDS
• HPV Vaccine
• Hepatitis
• Hepatitis B
• How Do People Get AIDS?
• How to Get Tested for HIV
• Pelvic Inflammatory Disease (PID)
• PrEP (Pre-Exposure Prophylaxis)
• Pubic Lice (Crabs)
• STDs (Sexually Transmitted Diseases)
• Syphilis
• Trichomoniasis

Note: All information is for educational purposes only. For specific medical advice, diagnoses, and treatment, consult your doctor.

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