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About COVID-19 infection

Last update date April 1, 2024

Basic information on new coronavirus infection

  • Covid-19 infection (COVID-19) is a disease caused by the coronavirus called SARS-CoV-2.
  • Inhale particles containing even smaller water, called virus-containing droplets or aerosol that are emitted from the mouth or nose of the infected person during coughing, sneezing, conversation, etc., or the infected person's eyes, nose, It is transmitted by direct contact with the mouth.

[Main Symptoms]

  • Systemic symptoms such as sore throat, cough, runny nose / stuff, body laziness, fever, and muscle pain often occur.
  • In those with mild symptoms, the symptoms often relieve within one week after onset.
  • Elderly people, people with underlying diseases, and some late pregnancy are at high risk of illness.
  • Underlying diseases that pose a risk of serious illness include chronic obstructive pulmonary disease (COPD), chronic kidney disease, diabetes, hypertension, cardiovascular disease, obesity, and smoking.
  • If you are at a high risk of illness or have severe symptoms, consult a medical institution.

About infection prevention measures

We ask for consideration so that individual independent judgments are respected.

Reference information for judgment (example of effective measures)

Hand hygiene such as hand washing

Ventilation

Avoid three secrets

For those with a high risk of illness (elderly people, those with underlying diseases, pregnant women, etc.) it is effective to avoid the following situations during the epidemic season.

  • Places with poor ventilation
  • Congested places like an unspecified number of people
  • Close conversation

About putting on and taking off a mask

Wearing a mask is based on individual judgment.
However, be careful in the following cases.

Wear a mask to prevent the spread of infection to the surrounding people.
  • If the new coronavirus infection is positive, it is recommended that you refrain from going out because there is a high risk of infecting others for 5 days after the onset and about 24 hours after the symptoms have eased.
  • Until 10 days have passed, wear a mask and take care not to move around.

Understanding for those who have difficulty wearing masks, etc. (Ministry of Health, Labour and Welfare website) (outside site)

Wearing a mask is effective to protect yourself from infection.

※Depending on the timing and situation, such as when the infection is rapidly spreading, or situations where there are many people at high risk of illness, such as medical institutions and facilities for the elderly, it is possible to strengthen infection control.

Always have a test kit or antipyretic analgesics.

About antigen test kit

Kit type

When purchasing, please check the display of the outer box.

[Attention!] Test kits that can be used are "prescription drugs" and "over-the-counter drugs (OTC)" approved by the government.

  • For ethical drugs, there is an indication of "in vitro diagnostic drugs" on the outer box.
  • Over-the-counter drugs, there is a label of "Type 1 Drugs" on the outer box.

About prescription pharmaceuticals "in vitro diagnostic drugs"

→Click here for the pharmacy you can purchase.
 List of pharmacies handling medical antigen test kits (Ministry of Health, Labour and Welfare website) (outside site)
 Antigen test kit sales pharmacy list (Yokohama City Pharmacists Association website) (outside site)

Over-the-counter drugs “Class 1 Drugs”

→It can be purchased on the Internet. Click here for product information.
 Approval information of the general antigen test kit (OTC) for COVID-19 infection (Ministry of Health, Labour and Welfare website) (outside site)

About antipyretic analgesics

In addition, something you should keep on hand

  • Drugs that I use regularly
  • Food that lasts longer (5 to 7 days)
  • Thermometer

When symptoms such as fever appear

  • Please use the antigen test kit for self-examination. If the symptoms are mild, start recuperation at home.
  • Elderly people, those with underlying diseases, or if the symptoms are severe, consult a medical institution such as your GP.
  • There are no restrictions on employment or daily life behavior in the event of infection based on the Infectious Diseases Law.

Period during which it is recommended to refrain from going out

  • Especially since the risk of infecting others for 5 days after onset, it is recommended that you refrain from going out for 5 days with the onset date as the 0th day.
  • If symptoms persists on the 5th day, it is recommended that you refrain from going out until the fever drops and symptoms such as sputum and sore throat are relieved and about 24 hours have passed. If the symptoms are severe, consult your doctor.
  • Until 10 days have passed, there is a possibility of virus discharge, so be careful not to pass around you, such as wearing a non-woven mask or refrain from contacting high-risk people such as the elderly. If symptoms such as coughing or sneezing continue 10 days after onset, wear a mask to keep cough etiquette by wearing a mask.
  • It is recommended that you refrain from going out for 5 days, starting with the date of onset (Ministry of Health, Labour and Welfare website (outside site)

About medical expenses

  • From April 1, 2024, Reiwa 6th, we shifted to a normal medical system, and public expenditure burden was finished.
  • You will be charged a normal window according to medical expenses's out-of-pocket ratio.
  • In medical insurance, the high medical costs system has been established for monthly window charges (including the cost of therapeutic drugs), and there is no self-pay that exceeds the limit according to income.
  • For more information, please refer to the application for public funds. About medical expensesPlease take a look at it.

About symptoms after onset of COVID-19 infection (so-called sequelae)

Please see (Kanagawa homepage) (outside site) about symptoms (so-called sequelae) after the onset of COVID-19 infection.

About family and living together

You are not required to refrain from going out in accordance with the law as a "close contact".

  • If possible, separate rooms and take care of the infected family should be taken care of as limited as possible.
  • If you go out, please pay attention to your physical condition for the person with COVID-19 as 0 days, especially for 5 days.
  • It may develop until the 7th day.
  • Please take basic measures against infection such as hand hygiene and ventilation.
  • Consider wearing a non-woven mask and refraining from contacting people at high risk of illness, such as the elderly.

If you're not sure about calling an ambulance

Telephone consultation desk of the Ministry of Health, Labour and Welfare

Related links

For inquiries to this page

Health and Safety Division, Medical Care Bureau Health and Safety Department

Phone: 045-671-2463

Phone: 045-671-2463

Fax: 045-664-7296

Email address: ir-kenkoukiki@city.yokohama.jp

Return to the previous page

Page ID: 194-000-007

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