The surface test is a research method that allows you to determine the presence of a virus on various objects and surfaces. This test is based on the analysis of fingerprints left by microbes on surfaces.
For surface testing, special agars are used, which contain nutrients for microbes. These agars are imprinted from surfaces that may be infected with the virus, such as doorknobs, computer keyboards, wastebaskets, etc.
After that, the agars are placed in an incubator at a certain temperature and humidity. Within a few days, microbial growth occurs on the agars, if they were on the surface.
Molecular diagnostic methods, such as PCR diagnostics, are also used for more accurate and faster testing on the surface. This method can detect the presence of viral DNA on surfaces.
It is important to note that the surface test is not completely accurate and may produce false positive or false negative results. Therefore, it is necessary to conduct surface testing in combination with other diagnostic methods, for example, testing for the virus in nasopharyngeal swabs.
The use of antibiotics in poultry farming remains a pressing issue. Long-term use of these drugs leads to the development of resistance in pathogenic bacteria and negatively impacts beneficial intestinal microflora, weakening the birds' immune system . Research shows that adding probiotics, zeolite, and inulin to broiler diets can effectively replace antibiotics . Probiotics restore normal intesti...
Cows have become a symbol of controversy, as debates about their environmental impact, particularly regarding methane emissions, have generated headlines, political decisions, and criticism. But while many study the animals themselves, a group of researchers decided to examine the soil. At the University of Nebraska-Lincoln, a team of researchers led by Professor Galen Erickson conducted a study t...
The Ministry of Health has approved nine outpatient treatment regimens for COVID-19 , which will be prescribed by a physician on an individual basis. Treatment should begin within the first week of the onset of symptoms, with antiviral medications.The Russian Ministry of Health has approved nine home treatment regimens for COVID-19. This is stated in updated clinical guidelines for the treatment o...
The Iskitim Central District Hospital reported this. A rabies epidemic has affected several regions, including the Krasnoyarsk Krai and Omsk Oblast. Rabid foxes typically attack people, but attacks by wolves and wild cats have also been recorded. Authorities have implemented quarantine measures. Nine people, including five children, who drank milk from the infected cow have been vaccinated. The cl...
Photo: Reuters , February 4, Minsk . Nearly 40% of cancer cases worldwide are preventable, according to a new global analysis by the World Health Organization and the International Agency for Research on Cancer, published on World Cancer Day (February 4), as reported on the UN News Center website. The study's findings are based on data from 185 countries on 36 types of cancer. The impact of 3........
Министерство здравоохранения утвердило первые постоянные клинические рекомендации по лечению COVID-19. Об этом сообщает ТАСС со ссылкой на документ. В рекомендациях говорится, что источником инфекции может быть не только заболевший, но и человек в инкубационном периоде, а также бессимптомный носитель SARS-CoV-2. «Наибольшую опасность для окружающих представляет больной человек в конце инкубационно...
Recommendations against the use of antibiotics to treat influenza have long been in place. The new standard has highlighted these errors once again, doctors interviewed by RBC said.The new standard for flu treatment has highlighted the main mistakes made in treating and self-treating the flu, doctors interviewed by RBC reported. The exclusion of antibiotics and diuretics from the list of non-drug ...