Isolation applies to people who have or are suspected of having an infectious disease, while quarantine applies to healthy people (without symptoms) who have been exposed to an infection, for example through contact with an infected person. Isolation is intended to isolate the source of the infection from other people, while quarantine is intended to bypass the period during which a person exposed to the infection can become ill and contagious before symptoms appear.
In Poland, both concepts are defined in the Act of December 5, 2008, on the Prevention and Control of Infections and Infectious Diseases in Humans. Below, we will examine their practical implications.
To sum it up
- Who this applies to: Isolation – those sick or suspected of having an infectious disease; quarantine – healthy people who have been in contact with infected people.
- Target: Isolation – preventing the transmission of a microbe from a sick person; quarantine – checking the absence of the disease in an exposed person and preventing further spread of the infection.
- Where: isolation in a hospital, other isolation facility, or at home (home isolation); quarantine usually at home or in a designated place.
- Duration of isolation: It usually lasts until the infectiousness subsides; mandatory quarantine – by law, a maximum of 21 days from the last contact with an infected person.
What is thermal insulation?
The law determines isolation as "the isolation of a person or group of persons suffering from an infectious disease, or a person or group of persons suspected of suffering from an infectious disease, in order to prevent the transmission of the biological pathogenic agent to other persons.".
A separate category is home isolation – isolation of a sick person whose illness does not require mandatory hospital treatment, at their place of residence or stay. If their health condition so requires, the patient is hospitalized where isolation is maintained, for example, in an infectious diseases ward.
Isolation typically lasts as long as the patient remains infectious. The illnesses requiring isolation and the duration of isolation are determined by a decree of the Minister of Health.
What is quarantine?
According to the same law, quarantine — is «the isolation of a healthy person who has been exposed to an infection in order to prevent the spread of particularly dangerous and highly contagious diseases.».
The purpose of quarantine is determined incubation period Disease: An infected person remains asymptomatic for a period of time but can still transmit the pathogen. Quarantine covers this period. If symptoms develop during quarantine or a test confirms infection, the person is no longer considered "at risk" and is generally subject to isolation.
The law provides for mandatory quarantine (or a more lenient one) epidemiological surveillance , not restricting freedom of movement), which is introduced by sanitary inspection authorities for a period no more than 21 days from the day following the last contact with an infected person. The specific duration of quarantine for a particular disease is specified in the regulations. The term comes from the Italian quaranta giorni , meaning "forty days" - the period of time during which ships arriving from plague-affected regions were kept in isolation in former ports.
Quarantine and Isolation – Differences Table
| Characteristic | Insulation | Quarantine |
|---|---|---|
| Who cares? | People suffering from or suspected of suffering from an infectious disease. | Healthy people without symptoms who have been exposed to the infection. |
| Target | Preventing the transmission of the germ to other people. | Waiting out the incubation period and preventing the spread of the disease |
| Place | Hospital, isolation ward or home (home isolation) | Usually it is a house or a specially designated place. |
| Duration | Depends on the disease – usually until the infectiousness subsides. | Depending on the disease, the maximum period established by law is 21 days from the last contact. |
| Medical assistance | Often, treatment, if necessary, is carried out in a hospital. | health monitoring |
| I'm leaving this place. | Prohibited, except in cases where hospitalization is necessary or unless the sanitary and epidemiological inspection decides otherwise. | Prohibited, except in cases where hospitalization is necessary or unless the sanitary and epidemiological inspection decides otherwise. |
| What's next? | It ends when the infectiousness decreases or by court order. | If symptoms appear or infection is confirmed, self-isolation is usually required. |
What are the responsibilities of a person in isolation or quarantine?
The law is straight prohibits leaving the isolation ward and quarantine facility, Unless the person requires hospitalization or the sanitary inspection authority decides otherwise. Detailed rules depend on the illness and the recommendations of the sanitary inspection authority or doctor. In practice, this usually means:
- stay at home or in a designated place and do not receive visitors.
- limiting contact with family members, if possible, a separate room.
- frequent hand washing and ventilation of rooms,
- monitoring your own health, such as measuring your temperature.
- If symptoms appear or worsen, you should contact your doctor or sanitary-epidemiological station by phone, without visiting the clinic in person, if recommended.
Failure to comply with the duties of the sanitary inspection may result in penalties stipulated by regulations. In each specific situation, the doctor's recommendations and the decision of the state sanitary inspector are decisive.
How to recognize if it is quarantine or isolation?
Ask just one question: Is this person sick (or is there a suspicion of illness), or did he simply come into contact with a sick person?
- You have symptoms and a confirmed infection - this is insulation .
- You feel well, but one of your family members has been diagnosed with a disease, due to which the sanitary and epidemiological station applies quarantine - this is quarantine .
- You have returned from an area where a serious illness has been reported and you have no symptoms – quarantine or epidemiological surveillance is possible by decision of the sanitary inspection.
These terms were often confused in common parlance, especially during the COVID-19 pandemic, when both measures were widely used. Mandatory quarantine and isolation due to COVID-19 are no longer used in Poland, but both concepts remain in law and are applied to other infectious diseases.
Frequently Asked Questions (FAQ)
What is the difference, in short, between quarantine and isolation?
Isolation applies to individuals who are sick or suspected of having an infectious disease and is intended to protect others from infection. Quarantine applies to healthy individuals who have been in contact with an infected person and lasts for the period during which they may become ill.
How long does the quarantine last?
This depends on the disease and its incubation period. The Law on the Prevention and Control of Infections and Communicable Diseases in Humans stipulates that mandatory quarantine lasts no more than 21 days from the day following the last contact with the patient. The exact duration is specified in the regulations and decisions of the sanitary and epidemiological station.
Is it possible to leave the house during quarantine or self-isolation?
As a rule, no – the law prohibits leaving the quarantine and isolation facility. The only exception is the need for hospitalization or another decision by the sanitary inspection authority.
What is house insulation?
This involves isolating the patient at their place of residence unless the illness requires mandatory hospitalization. The patient remains at home but cannot go outside and must limit contact with family members.
What happens if symptoms appear during quarantine?
You should contact your doctor or sanitary and epidemiological station by phone and follow their recommendations. If infection is confirmed, quarantine usually progresses to isolation.
See also
- What is the difference between a vaccine and a serum?
- What is the difference between health insurance and health insurance?
- What is the difference between HIV and AIDS?
- What is the difference between influenza A and B viruses?