According tomedia reports, you may have heard recently that the new coronary virus can be transmitted through the air. That’s because the World Health Organization (WHO) has finally acknowledged the risk, albeit reluctantly, as a growing body of research has shown that aerosols in infected people may contain enough viruses to spread disease. What’s more, these aerosols can travel farther than water droplets. Researchers have not determined how much viral load in the air is sufficient to infect patients, but the information is clear.
Using masks indoors can have a big impact, and ventilation may need to be studied to help prevent the spread of the virus. Some new studies have added evidence that the new crown virus aerosol is contagious, a risk that officials should take into account when designing new safety measures.
The University of Minnesota Center for Infectious Disease Research and Policy (CIDRAP) detailed the findings earlier this week. The first study came from China and was published in Clinical Health Diseases. The researchers measured the gas exhaled by patients with new coronary pneumonia and found that they could exhale millions of viral RNA particles per hour early in the disease. This is a huge breakthrough, and of course it needs more research. Other studies have known that these virus particles can be excreted by coughing, sneezing or even just talking, but the latest development is pretty scary.
The scientists looked at exhaled gas samples from 49 patients with new coronary pneumonia, four non-new crown hospitalizations and 15 healthy people from 10 countries. Scientists used routine PCR testing to identify the virus, and they also took samples from 242 surfaces that isolated hotels, hospitals and personal items. The researchers found that 26.9 percent of exhalation samples contained viral RNA, compared with 3.8 percent of air samples and 5.4 percent of surface cotton swabs. Interestingly, although the breathing samples of the two patients tested positive for new coronary virus RNA, their hands, cell phones and toilets tested negative. In addition, the researchers also found viral RNA on ventilation ducts under the patient’s bed.
Of the 242 surface swabs, 16.7 per cent came from toilets, 12.5 per cent from floors and 4 per cent from hands, pillowcases, telephones and computer keyboards. Only 2.6 per cent of surfaces exposed to health-care personnel tested positive. Other surfaces like most phones and handles test negative.
The researchers concluded that viral RNA exhalation varies with activity levels, disease stages, and age. However, the researchers believe the results prove that the disease is mainly spread by aerosols rather than droplets, which are larger particles that sneeze and sneeze. The study does not prove to be contagious or contagious, so more research is certainly needed to confirm it.
Another study from the Netherlands provides further evidence of the possibility of aerosol transmission. Dutch researchers have documented a magpie outbreak that occurred after the Netherlands flattened the outbreak curve. In the week of the outbreak, only 493 people tested positive, and in April, at the height of the local new coronary virus epidemic, the results reached nearly 8,400.
The researchers explain that an air-conditioning system may be the cause of the cluster of patients with new coronary pneumonia in the wards. Although staff caring for patients were required to wear surgical masks and patients in the wards were not able to move around, 34 people were infected in the wards, including 17 paramedics and 17 patients. The tests of 95 patients and 106 staff members in the other six wards were negative.
The scientists believe that the ventilation system in the ward caused the outbreak. This smart air conditioner will only replace the air if the indoor CO2 sensor shows an increase in CO2 concentration. The other six wards have different air conditioning systems, which update the air regularly.
In the shared living room, the researchers found viral RNA in air-conditioned dust filters and four dust filters in three of the eight ventilation units. “We recommend that the prevention of the spread of the new coronary virus take into account the possibility of aerosol transmission, such as in buildings where unfiltered indoor air is recycled in medical facilities and other ventilation systems,” the researchers said. “