News Corona

Tips about Corona

Corona and food

No infections with SARS-CoV-2 via these transmission routes are known yet. However, if an infected person sneezes or coughs directly on food, the virus can get onto the food, but it cannot multiply there because it needs a living host to do so.

However, anyone who touches such a food or object and touches eyes, mouth or nose shortly after, runs a high risk of transmitting the virus via a smear infection.

Therefore: Hygiene, hygiene, hygiene! Wash your hands and keep your fingers out of your face!

Does the virus survive on surfaces?

How stable corona viruses are in the environment depends on many factors, such as temperature, humidity and the nature of the surface, as well as on the specific virus strain and the amount of virus. In general, however, human coronaviruses are not very stable on dry surfaces and become inactive within hours or a few days.

For the novel coronavirus SARS-CoV-2, initial laboratory tests by an American research group show that after heavy contamination it can remain infectious for up to 3 hours as an aerosol, up to 4 hours on copper surfaces, up to 24 hours on cardboard and up to 2-3 days on stainless steel and plastic.

This means that the stability of the coronavirus SARS-CoV-2 determined in the laboratory is significantly lower than that of many other pathogens. The stability mentioned in the study was determined in the laboratory under optimal conditions and with high virus concentrations. In practice, it can be expected that the stability is lower than determined in the laboratory study due to additional factors such as daylight, fluctuating temperature and humidity and lower levels of contamination.

Flush the virus away?

Coronaviruses are enveloped viruses whose genetic material is covered by a layer of fat. They are therefore extremely sensitive to fat-dissolving substances such as alcohols and surfactants, which are contained as fat-dissolvers in soaps and dishwashing detergents.

Although specific data are not yet available for SARS-CoV-2, it is highly probable that these substances damage the virus surface and inactivate the virus. This is particularly true if dishwashers are cleaned at 60 degrees Celsius or higher.​



Risk for chronic lung patients

The German Society for Pneumology and Respiratory Medicine (DGP) has established the following risk assessments for the respective clinical pictures:

Bronchial asthma

To date, there is no evidence that patients with bronchial asthma have a higher risk of severe COVID-19 progression, says the DGP statement. On the contrary, physicians have even put forward the thesis that the course of asthma patients could be rather mild. There is also no evidence that inhaled steroids increase the risk of severe COVID-19 progression in asthma. Since inhaled steroids generally reduce the risk of asthma exacerbation, a protective effect is suspected.

Patients with COPD

According to the DGP, however, there are indications that the risk of severe COVID-19 courses is increased in the case of COPD, which is also a widespread diagnosis. In the presence of cardiovascular comorbidity, patients with COPD even have a significantly increased risk.

All patients with chronic respiratory and lung diseases are advised to strictly adhere to the hygiene recommendations, especially the rules of distance, hygiene rules and vaccination recommendations should be observed.

The complete recommendations of the DGP can be found on the website of the professional association. The recommendations are regularly updated based on the daily new findings on COVID-19.

Disinfectants useful?

No, for healthy people there is no need to use disinfectants in private households. Normal hygiene measures such as frequent and correct hand washing with soap and regular cleaning of surfaces and door handles with household detergents and cleaning agents containing surfactants offer sufficient protection against transmission.

It is a different matter when an infected person lives in the household. In this case please contact us by telephone.

Dra. Iris-Alexandra Henkel


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