What is a close contact person?

From 2 days before the onset of symptoms for those who tested positive (2 days before the sample collection date for asymptomatic patients) to the end of medical treatment, the period during which there is a possibility of infecting other people (infectable period).
Among those who came into contact with the patient during this period, those who fall under the following range are considered close contacts.

• People who live with the patient or have been in contact with the patient for a long time (in a car, on an airplane, etc.)
• A person who examined, nursed, or cared for a patient without adequate protection against infection
• Persons who are likely to have been in direct contact with contaminants such as respiratory secretions or bodily fluids of the patient
• In addition, people who have been in contact for more than 15 minutes without the necessary infection prevention measures (masks, etc.) at a distance where they can touch with their hands (1 meter as a guideline) comprehensively judge the infectivity of

(From the National Institute of Infectious Diseases "Proactive Epidemiological Survey Implementation Guidelines")

Waiting period for close contacts

waiting period

If you have been in close contact with the patient, even if you are asymptomatic, please stay at home for 5 days (*) from the day after the last contact with the patient (last contact date).

Note: The waiting period is 5 days even if the test result is negative.
*In the case of response based on the spread of Omicron strain infection. Mutation screens result in 14 days for close contacts of patients with the L452R mutation (delta strain).

In addition, the antigen qualitative test kit will be tested on the 2nd and 3rd days, and if a negative result is confirmed, the waiting period can be canceled from the 3rd day. For more information, please see the Tokyo Metropolitan Government website "For people close to you who have become infected with the new coronavirus" (link to an external site) .

Waiting period for family members who are close contacts

If an infected person occurs in the same household, all cohabitants will be close contacts. We ask that you stay at home for 5 days, counting the day on which infection control measures are taken in your residence or the day on which a positive person develops symptoms, whichever is later, as day 0.
In addition, the antigen qualitative test kit will be tested on the 2nd and 3rd days, and if a negative result is confirmed, the waiting period can be canceled from the 3rd day. For more information, please see the Tokyo Metropolitan Government website "For people close to you who have become infected with the new coronavirus" (link to an external site) .

Even after the waiting period for family members living together has ended, until the recuperation period of the positive person ends, check the health condition such as temperature measurement, avoid using places with a high risk of infection, avoid eating together, and wear a mask to prevent infection. Please.

[What is infection control in the residence]

• Wearing a mask as much as possible in daily life
• Hand washing and hand disinfection
• Avoid sharing supplies
• Implementation of disinfection, etc.

*This does not require strict isolation.

Notice to those who have been in close contact

Those who have been in close contact with the virus are asked to check their own health conditions, such as taking their temperature, until 7 days have passed after the waiting period is lifted. In addition, contact with people who are at high risk of becoming seriously ill if infected, such as the elderly and those with underlying diseases (hereinafter referred to as "high-risk people"), and elderly people and people with disabilities who are admitted or hospitalized by many high-risk people Please avoid unnecessary and non-urgent visits to facilities and medical institutions, use places with high risk of infection, avoid eating together, etc., and wear a mask to prevent infection.

In addition, due to the rapid spread of infection, the Tokyo Metropolitan Government is distributing antigen qualitative kits that can be used by people who have been in close contact with the patient during the waiting period, such as at home, in order to reduce the concentration of tests and consultations at medical institutions. For more information, please see the Tokyo Metropolitan Government website "Test kit application site for those who have been in close contact" (link to an external site) .

How to spend the waiting period

• During the waiting period, please refrain from going out, commuting to work, or going to school unless it is absolutely necessary. If you have no choice but to go out, please wear a mask, wash your hands, and avoid contact with other people.
• Avoid using public transportation as much as possible (trains, buses, taxis, airplanes, etc. used by an unspecified number of people).
• Check your health every day.

1. Please measure your body temperature twice a day.
2. Pay attention to symptoms such as fever, cough, shortness of breath, and strong malaise. If you do not have a family doctor, please search for a medical institution from the related link "If infection with new coronavirus infection is suspected" (list of medical institutions that provide fever outpatient services). For other consultations, please contact the Adachi Ward Fever Telephone Consultation Center by phone.

*The waiting period will be 5 days, but until 7 days have passed, please take measures against infection such as checking your health condition by yourself such as temperature measurement, avoiding high-risk places and eating out, and wearing a mask. Please.

Consultation window

Adachi Ward Fever Telephone Consultation Center (in Adachi Public Health Center)
Phone number: 03-3880-5747
Reception hours: Weekdays 9:00 a.m. to 5:00 p.m. Eligible people: Those who live, work, or study in the city who wish to consult

■ Tokyo Metropolitan Fever Consultation Center (Saturdays, Sundays, national holidays, night hours)
Phone number: 03-5320-4592 or 03-6258-5780
Reception hours: 24 hours (regardless of weekdays, weekends and holidays)

■Those who have difficulty in consulting over the phone due to hearing impairments, etc. (Tokyo Metropolitan Government Fax Consultation)
Fax: 03-5388-1396
Reception hours: 24 hours (In principle, answers are from 9:00 to 18:00 on weekdays)
*There is a dedicated consultation form, so please see the related link below "About the consultation counter for the new coronavirus infectious disease (for those who have difficulty in consulting over the phone, such as those with hearing impairments)".