Omar Khalid
The COVID-19 virus can live on surfaces for varying durations, from minutes to days, depending on the type of surface, temperature, humidity, and UV light exposure. While the main mode of transmission is through respiratory droplets, the CDC acknowledges that touching contaminated surfaces is a possible means of infection. The virus can survive on non-porous surfaces like plastic for up to three days, while porous surfaces like cardboard are less conducive to its survival, with the virus becoming inactive after 24 hours.
| Characteristics | Values |
|---|---|
| Can COVID-19 live on plastic surfaces? | Yes |
| How long can COVID-19 survive on plastic surfaces? | 3 days |
| Is the risk of infection from touched surfaces high? | No |
| What factors influence the survival time of the virus? | Temperature, humidity, UV light exposure, size of the surface, level of virus present |
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What You'll Learn
COVID-19 can live on plastic for up to three days
The COVID-19 virus can survive on plastic surfaces for up to three days. While this is the case, it is important to note that the risk of contracting the virus from touched surfaces is considered low. The main way the virus spreads is through person-to-person contact via respiratory droplets.
COVID-19 can spread through surface transmission, but this is less common than direct transmission from another person. The virus has a higher chance of survival on non-porous surfaces, such as plastic, glass, and stainless steel, compared to porous materials like fabric, cardboard, and copper. Environmental factors, such as temperature, humidity, and UV light exposure, also influence the survival time of the virus. For example, if the temperature is above 72 degrees Fahrenheit, the virus will not survive for longer than four minutes.
To reduce the risk of contracting COVID-19 from surfaces, it is recommended to wash your hands regularly and clean surfaces with soap and water or registered disinfectants. It is also advised to continue taking precautions such as wiping down groceries and using hand sanitiser.
While the risk of surface transmission is relatively low, it is still important to remain cautious and follow recommended safety guidelines. The COVID-19 virus can survive on plastic for up to three days, so it is crucial to maintain good hygiene practices and take the necessary precautions to minimise the risk of infection.
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The risk of infection from touched surfaces is low
The risk of contracting COVID-19 from touched surfaces is relatively low compared to airborne transmission. However, the risk is not non-existent, and it is still important to take precautions. The virus can survive on plastic surfaces for up to three days, and it is more likely to survive on hard, non-porous surfaces such as glass and stainless steel, where it can remain infectious for up to seven days.
The length of time the virus can survive on a surface depends on various factors, including temperature, humidity, and UV light exposure. For example, if the temperature is above 72 degrees Fahrenheit, the virus will not survive for longer than four minutes. Similarly, UV light exposure through a windshield can inactivate the virus in less than 30 minutes. The virus also tends to evaporate more quickly on porous surfaces like fabric, although it can survive on some fabrics for up to two days.
While the risk of infection from touched surfaces is low, it is still important to practice good hygiene and disinfect high-touch surfaces regularly, especially in enclosed spaces like bathrooms and kitchens, where the spread of expelled particles is more concentrated. It is also crucial to wash your hands frequently and avoid touching your face, as the virus can enter your body through your mouth, nose, or eyes.
To reduce the risk of surface transmission, public health officials recommend regular handwashing and cleaning surfaces with soap and water. If you use disinfectants, choose those registered with the EPA. Additionally, it is important to wear masks, practice social distancing, and follow other public health guidelines to minimize the risk of airborne transmission, which is the primary mode of COVID-19 spread.
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COVID-19 spreads mainly through respiratory droplets
The virus has more success surviving on hard, nonporous surfaces, such as glass and plastic, than on porous ones like fabric and tissue paper. This is because the respiratory droplets in the fibers of porous materials evaporate more quickly. The COVID-19 virus has been known to persist on nonporous surfaces for as long as seven days.
Environmental factors, such as temperature, humidity, and UV light exposure, can damage the virus while it is airborne and influence its survival time on surfaces. For example, if exposed to temperatures greater than 72 degrees Fahrenheit (22 degrees Celsius), the virus generally lives no longer than four minutes. Similarly, UV sun exposure through a windshield can inactivate the virus in less than 30 minutes.
While surface transmission is not the main way the virus spreads, it is still possible for a person to get COVID-19 by touching a contaminated surface and then touching their mouth, nose, or eyes. Therefore, it is important to continue practicing safety measures such as wiping down surfaces and using hand sanitizer.
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The virus survives longer on non-porous surfaces
The COVID-19 virus survives longer on non-porous surfaces than on porous ones. Non-porous surfaces include glass, plastic, stainless steel, vinyl, and paper banknotes. On these surfaces, the virus can remain viable for up to 28 days in controlled lab environments at room temperature. At warmer temperatures, its survival time decreases. For example, at 40°C with 50% humidity, the virus survives for less than 24 hours.
In contrast, COVID-19 lasts for about two days on some fabrics and only 30 minutes on paper. The virus's longevity on a surface depends on various factors, including temperature, humidity, the time between contamination and contact, and the amount of virus transferred.
While surface transmission is not the main way COVID-19 spreads, it is still possible to get infected by touching a contaminated surface and then touching your mouth, nose, or eyes. Therefore, it is important to continue practising safety measures such as wiping down surfaces, washing your hands frequently, and maintaining social distance.
Although the risk of infection from contaminated surfaces is relatively low, taking precautions is still advisable. The virus has been found to survive for three days on plastic, so it is recommended to wipe down plastic packages and surfaces as an added precaution.
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Environmental factors like temperature and humidity can damage the virus
Environmental factors such as temperature and humidity can influence the spread and mortality rate of COVID-19. Temperature and humidity play a fundamental role in the survival of the SARS-CoV-2 virus. Coronaviruses have been found to be pathogenic in the temperature range of 5°C to 34°C and a humidity rate of 11% to 85%. An increase of 1°C in temperature and a 1% increase in relative humidity have been associated with a decrease of 3% and 1% in new COVID-19 cases, respectively.
The impact of temperature is evident in the transition from summer to winter, which leads to a decrease in absolute humidity and, consequently, a potential increase in the survival of the SARS-CoV-2 virus. This suggests that the virus may have seasonal epidemic peaks, similar to other human coronaviruses.
In addition to temperature and humidity, other environmental factors such as pH, salinity, solar radiation, and geographical location (latitude) also play a role in the spread and survival of the virus. For example, the virus can survive longer on hard and non-porous surfaces such as glass and plastic, compared to porous materials like fabric and cardboard.
Furthermore, the risk of infection from contaminated surfaces still exists, although it is not the main way the virus spreads. The length of time between contamination and contact, as well as the amount of virus transferred, also influence the likelihood of surface transmission. Therefore, it is important to continue practising safety measures such as wiping down surfaces and maintaining good hygiene to reduce the risk of COVID-19 transmission.
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Frequently asked questions
Yes, Covid can live on plastic surfaces.
The Covid-19 virus can survive on plastic for up to three days. However, some sources state that the virus can survive on non-porous surfaces for up to seven days.
Environmental factors such as temperature, humidity, and UV light exposure influence how long Covid lives on surfaces. The virus survives longer in environments with low humidity, low temperatures, and low UV light exposure.
Yes, it is important to continue disinfecting surfaces, especially if someone in your household has Covid. The CDC states that it is possible to get Covid by touching a contaminated surface and then touching your mouth, nose, or eyes, although this is not the main way the virus spreads.
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