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  1. About Sexually Transmitted Infections (STIs) | STI | CDC

    Mar 25, 2024 · A sexually transmitted disease (STD) develops because of an STI and the term implies that the infection has led to some symptom of disease. People sometimes use the terms in one …

  2. Sexually Transmitted Infections (STIs) | STI | CDC

    Jan 16, 2024 · Letters from the Director of the Division of STD Prevention to public health colleagues. Program management, evaluation, and outbreak response resources and tools for STI programs. …

  3. How to Prevent STIs | STI | CDC

    Apr 9, 2024 · Overview What are STIs? An STI is a virus, bacteria, fungus, or parasite people can get through sexual contact. Sexually transmitted diseases (STDs) develop as a result of an STI. STD …

  4. Fact Sheets | STI | CDC

    Provides basic information about STD Risk and Oral Sex, including prevention and testing.

  5. STI Treatment Guidelines

    Jul 10, 2025 · Treatment guidelines for sexually transmitted infections from CDC's Division of STD Prevention

  6. The Lowdown on How to Prevent STDs

    The Good News STDs ARE preventable. There are steps you can take to keep yourself and your partner (s) healthy. Here’s How You Can Avoid Giving or Getting an STD:

  7. Sexually Transmitted Infections Treatment Guidelines, 2021

    The term “sexually transmitted infection” (STI) refers to a pathogen that causes infection through sexual contact, whereas the term “sexually transmitted disease” (STD) refers to a recognizable disease …

  8. Getting Tested for STIs | STI | CDC

    Jan 31, 2025 · If you are sexually active, STI testing is one of the most important things you can do to protect your health. Have an open and honest conversation with your healthcare provider to learn …

  9. About Chlamydia | Chlamydia | CDC

    Jan 31, 2025 · This page answers basic questions about chlamydia, including how to prevent and treat it.

  10. National Network of STD Clinical Prevention Training Centers This pocket guide reflects recommended regimens found in CDC’s Sexually Transmitted Infections Treatment Guidelines, 2021. This …