About HIV/AIDS

• Basic knowledge of HIV/AIDS
• About inspection

HIV is Human Immunodeficiency Virus (human immunodeficiency virus).
AIDS is a disease caused by infection with HIV, but it does not mean "HIV = AIDS".
Infection with HIV reduces the function of immunity, makes it more susceptible to pathogens that are not normally transmitted, and develops various diseases.
The condition of this disease is called AIDS (AIDS: Acquired Immuno-Deficiency Syndrome, Acquired Immuno-Deficiency Syndrome).
There are 23 typical diseases, and when they develop them, they are diagnosed with AIDS. Currently, a variety of treatments are available, and it is becoming possible to prevent the onset of AIDS by taking them properly.
Influenza-like symptoms may appear within a few weeks of HIV infection, but since the period without symptoms lasts about 5 to 10 years, there is a risk of spreading the infection without realizing it.

The main routes of transmission are:
①Infection by sexual activity
②Infection through blood
③It is a mother-to-child transmission from mother to baby.
HIV is weak infectivity and is not transmitted other than sexual activity in daily life.

HIV infection has no characteristic symptoms and may not appear, so it is important to have a test to find out if you have been infected.
In Yokohama City, we conduct free and anonymous HIV / syphilis tests.
For more information about testing, please see About Testing.

⇒ List of inspection venues and reservations for 2025 (PDF: 424KB)

There are regular inspections and same-day inspections. Normally, the results will be announced on another day (one to two weeks after the inspection), but the same-day inspection can be announced on the day of the inspection.

　①Reservation
　②Tell the reservation number at each inspection site
　③Explanation of inspection and entry of questionnaire
　④Blood collection
　⑤The same-day inspection will be held at the venue and the results will be explained. Regular inspection will be explained at the same venue at a later date.

※If the HIV screening test is "judgment pending", we will give you a letter of introduction.
※The results of the inspection will be notified directly to the person on the day of the inspection in principle on the same day inspection, and to the person in principle 1-2 weeks later in the ward. 　　 　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　※If the week following the inspection date is a national holiday, New Year's holiday, etc., the result may take longer than the above period (we will tell you at the time of the test).　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　※We cannot inform you by telephone, mail or e-mail.

• Please be sure to make a reservation and confirm by telephone. Reservation application will vary depending on the inspection site.
• It's a blood test. We do not accept only syphilis tests.
• HIV may not produce accurate test results unless more than three months have passed since the date of concern.
• The above is based on the window period and does not limit the inspection.
• A certificate cannot be issued because it is an anonymous inspection.
• Holidays and New Year's holidays (December 29-January 3) are closed. In addition, it may be canceled due to stormy weather.
• If you feel unwell, such as fever or cough, please refrain from visiting the office.
• Due to the convenience of the venue, please visit by yourself.

Date: In principle, 1st and 3rd Wednesday
Venue: Port Town clinics (7-6 Kanakocho, Kanagawa-ku, Yokohama)
Time From 18:30 to 20:30 (Reception hours until 20:00)
Reservation method: From here, it will lead to the reservation site https://health-kanagawa.net/yokohama/ (external site).
(Refer to the implementation schedule below for the reservation start date.)
Results Description: On the day of inspection
Consultation and contact: City of Yokohama, Medical Care Bureau Health and Safety Division 045-671-2729
※Please refrain from making inquiries to clinics regarding inspection details, reservations, etc.
　

Time 14：00～17：00
Venue: Kanagawa Tuberculosis Prevention Association Central Health Consultation Office
Reservation method: Yokohama-shi electronic application (reservation is possible from 9:00 am two weeks before user registration unnecessary inspection date)
Select the reservation page (external site) procedure list (for individuals) and enter "HIV" (uppercase / half-width) in keyword search.
How to use Yokohama City Electronic Application (PDF: 417KB) (PDF)
※Test site Request from Kanagawa Tuberculosis Prevention Association Central Health Consultation Center
"Please be sure to bring your own mask and wear it before consulting."
"If you have fever or cold symptoms, please change the date of your consultation. Please consult us after your physical condition is fully restored."

Time 14：00～17：00
Venue: Kanagawa Preventive Medicine Association Central clinics
Reservation method: Yokohama-shi electronic application (reservation is possible from 9:00 am two weeks before user registration unnecessary inspection date)
Select the reservation page (external site) procedure list (for individuals) and enter "HIV" (uppercase / half-width) in keyword search.
How to use Yokohama City Electronic Application (PDF: 417KB) (PDF)

※For those who booked from 14:00 to 14:30
The opening time on the day of the inspection is 13:45. There is no place to wait, so please visit us after 13:45.

Please call each Health and Welfare Center for reservations. Inspection day and inspection time vary from venue to venue.
Click here for details ⇒ List of inspection venues and reservations for 2025 (PDF: 424KB)

• Please call Health and Welfare Center and Medical Care Bureau at the next time.　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　Mon to Friday 8: From 45 to 12:00/13:00 to 17:00 (excluding holidays and New Year holidays)

　　　　　Contact information for each Health and Welfare Center

• For inquiries about the contents of night, Saturday and Sunday tests, please contact the Medical Care Bureau Health and Safety Division.　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　ＴＥＬ045-671-2729、ＦＡＸ045-664-7296　※You can't reserve an inspection from this number.

The number of new HIV infected person AIDS cases reported in 2024 increased compared to the previous year.
Let's have a test to know if there is an infection.
⇒Click here for the trends of HIV infected person AIDS patients and syphilis patients in 2024 (PDF: 650KB)
Reports of syphilis patients are increasing nationwide.
For more information about syphilis, please see the syphilis page.

• Yokohama City AIDS Prevention Guidelines (revised in April 2022)
  　Yokohama-shi AIDS prevention guideline (PDF: 1,482KB)

• Yokohama AIDS Citizens' Activities Center (outside site)
  I support everyone who thinks and acts about AIDS.
  Information on AIDS (books, pamphlets, etc.), support for voluntary activities and training activities (meeting spaces, printing machines, etc.)
• HIV testing and consultation map (outside site)…Information on HIV testing venues nationwide, etc.
• AIDS Prevention Information Net (outside site)…Information on prevention and awareness of AIDS, outbreak trends, etc. (consigned by the Ministry of Health, Labour and Welfare)
• HIV map (outside site)…General Information Site for HIV
• Q & A on Syphilis (Ministry of Health, Labour and Welfare website) (outside site)
• Kanagawa Prefectural Center for AIDS Treatment (Yokohama City University Hospital) (outside site), (Yokohama Municipal Citizen's Hospital) (outside site)