- Northern Nevada Public Health (NNPH)
- About Us
- Programs and Services
- Resources
- FAQ
- Air Quality
- Birth and Death Records
- Commercial Recycling
- Cottage Food
- E. coli
- Environmental Health
- Salmonellosis
- Nevada Clean Indoor Air Act
- Solid Waste Management Plan
- Special Events/Temporary Food
- Waste Reduction, Recycling, and Disposal
- Community And Clinical Health
- Sexual Health
- Do condoms provide 100% protection from HIV?
- HIV is NOT transmitted by:
- How can HIV transmission from injection drug use be prevented?
- How can sexual transmission of HIV be prevented?
- Is there a cure for HIV and AIDS?
- What are the symptoms of a new HIV infection?
- What is AIDS?
- What is HIV?
- What is the "window period" for HIV?
- What is the HIV Antibody Test?
- Where else is HIV testing available in the community?
- Who is at risk for HIV infection?
- What are STDs?
- Consequences of STDs.
- How is HIV transmitted?
- What communicable diseases am I required to report?
- In regards to STDs, what diseases am I required to report?
- Family Planning Clinic
- Immunizations
- Teen Health Mall
- Tuberculosis (TB)
- Vasectomy
- Sexual Health
- Water Projects/Engineering
- News Center
- COVID-19 Info
- Gastrointestinal_Illness_(GI)_Guidelines-English
- Gastrointestinal_Illness_(GI)_Guidelines-English
- Gastrointestinal_Illness_(GI)_Guidelines-Spanish
- Rash_(Hand_Foot_&_Mouth_Disease)_Guidelines
- Rash_(Hand_Foot_&_Mouth_Disease)_Guidelines_Spanish
- Respiratory_Illness_Guidelines-English
- Respiratory_Illness_Guidelines-Spanish
- Health
What is the "window period" for HIV?
It can take up to 3 months after HIV infection for enough antibodies to develop, therefore a negative test result is reliable only if the person has not had any sexual or needle-sharing risk behavior (or other exposure to infectious body fluids) during the 3 months prior to testing. Some people with recent risk behavior will test HIV antibody negative, yet may have actually been infected during the previous 3 months. Every exposure pushes the window period out another months.
Last modified on 01/08/2015
NOTICE: The Washoe County Health District will be changing its name to Northern Nevada Public Health on Aug. 31, 2023. That move will result in major design changes (look and feel) to the website, a new URL (NNPH.org), a new logo and more. More information on the change will be available soon.