It was proven that wiping surfaces with a disinfectant tissue regularly is far more effective than spraying antiseptic liquid to prevent COVID-19 infection.
 
This has been proven by the research of Professor Jang Hee-Chang (Department of Infectious Disease) and Professor Kee Seung-Jeong (Department of Laboratory Medicine) of CNU, who conducted research in four different medical environments, including CNU Hospital and Daegu Dongsan Hospital to figure out the infection route of COVID-19.
The COVID-19 virus was detected in 17 - 48% of hospital items touched by patients in three hospitals including, bed handles, medical carts, floors, door handles, bathroom sinks, toilets, cell phones, intercoms, TV remote controllers, and laptop computers. However, no virus was detected in one hospital with the same facilities.

The research team found that the detection of the coronavirus on hospital surfaces was due to the different disinfecting methods used. Viruses were not detected in hospital rooms where all surfaces were regularly wiped with disinfectant tissues, but viruses were found in the rooms maintained by spray sterilization, i.e., where disinfectants were sprayed on surfaces twice a day. As a result, it is possible to conclude that wiping with disinfectants is more effective than spraying an antiseptic solution.
 
In addition, the research team concluded that the risk of air infection is overall not very high, except in environments where aerosol is created due to the usage of respirator or intubation, as the virus was not detected in the air collected from 32 locations around confirmed persons with COVID-19.

The research team conducted the research at the CNU Hospital in Gwangju (single person quarantine room with negative pressure), the Hwasun CNU Hospital (single person quarantine room with negative pressure), the Bitgoeul CNU Hospital (single person quarantine room without negative pressure), and the Daegu Dongsan Hospital (shared room without negative pressure). In the experiment, 11 - 19 samples from 8 confirmed patients were collected in the hospital rooms four times, before the admission of them for comparison, and the 3rd, 4th, and 7th day of their hospitalization.

The result of this research was scheduled to be published on October 21st in the JKMS, an international academic journal, and was first published in the online edition.