Mexican scientists design test to detect coronavirus through saliva

A group of scientists from the National Autonomous University of Mexico designed a test to detect COVID-19 through saliva According to th...

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  • A group of scientists from the National Autonomous University of Mexico designed a test to detect COVID-19 through saliva
  • According to the university, two millimeters of saliva are enough to obtain the sample, which is also 50% cheaper than the PCR test.
  • Likewise, Mexico confirmed its participation in the global plan for access to the vaccine for COVID-19

A group of scientists from the National Autonomous University of Mexico (UNAM) designed a method to detect SARS-CoV-2 through saliva, with the intention of reducing the risk for health personnel and speeding up the diagnosis, according to the Efe agency.

According to Susana López Charretón, researcher at the Department of Developmental Genetics and Molecular Physiology at the Institute of Biotechnology (IBt), this test works with two milliliters of saliva (usually generated for two minutes in the mouth) and has already been applied to patients of the state of Morelos.

López Charretón indicated that with the saliva method “self-intake can be done, thus saving supplies and processing can be faster.

Saliva coronavirus test: Mexican scientists design test

Photo: Twitter.

“This has nothing to do with the diagnostic test, which is still the RT-qPCR, the gold standard for detecting the virus,” he clarified.

The method is also 50% cheaper than collecting PCR tests, which are done with swabs in the nose and throat and the patient could perform it, he said in a UNAM bulletin.

The university researcher indicated that the high demand for materials and reagents for taking and processing the samples has resulted in the global shortage of these supplies, essential for carrying out RT-qPCRs.

Likewise, López Chárreton assured that as part of the plans to lift mobility restrictions in the country, it is necessary to increase the number of laboratory tests, and these that are based on saliva can be an alternative, he added.

The also winner of the L’Oréal-UNESCO Prize for Women in Science in 2012 specified that a similar method, designed by Yale University, has already been approved by the Food and Drug Administration (FDA) for its use in the United States, and Japan has also begun to carry them out on a massive scale, according to the UNAM.

Saliva coronavirus test: Mexican scientists design test

Photo: Twitter.

“We have carried out the study in collaboration with the Morelos health system since June, with the health caravans, and we hope that it will be possible to apply it in the short term in other states,” he said.

“It would be a great advantage for our country. In fact, they have already written to us from Spain so that we can comment on our experiences and begin to work with this system in their communities ”, the researcher assured.

López Charretón stressed that it is necessary to sample large populations for the reopening of companies and schools.

“For example, if we want the employees of a factory to return, the ideal would be to sample a representative percentage of them, as requested by the authorities of Mexico City; the same requirements are for UNAM workers and school-age children, ”he added.

The UNAM highlighted that the research on the saliva test, carried out in collaboration with Joaquín Moreno, Marco Antonio Espinoza, Carlos Sandoval and Carlos Arias, all from the IBt, together with the Ministry of Health of Morelos, was accepted for publication in the Journal of Clinical Microbiology, and is now available online.

He Journal of Clinical Microbiology (JCM) publishes the most current research related to the coronavirus.

The test, the academic highlighted, is a safer option for health personnel, since saliva is “self-deposited” by the patient in a sample glass that is usually used for urine studies.

This process will save the special swabs used so far to collect the SARS-CoV-2 coronavirus samples from the throat or nose.

The UNAM experts used 253 patients to perform the test.

“With this procedure, workers are safer and protected against a possible infection of the coronavirus ”, he remarked.

Filed Under: Saliva Coronavirus Test

The most widely used method for PCR (polymerase chain reaction) requires a nasopharyngeal sample taken by medical personnel, which carries a risk of coughing or sneezing for the patient and the consequent potential exposure to the virus for healthcare workers.

Mexico confirms participation in global plan for access to vaccine for COVID-19

Likewise, the Mexican Government confirmed this Monday to the Covax Office, the coalition of 172 countries that seeks to guarantee the vaccine to the poorest countries, its intention to participate in the global plan for the equitable distribution of biologicals, in order to have access timely to immunization.

In a statement, the Ministry of Foreign Relations (SRE) stated that on August 31, in coordination with the Ministry of Health, it sent a letter to Covax to confirm its intention to participate in the Covax Facility mechanism.

Filed Under: Saliva Coronavirus Test

The Covax mechanism is an instrument hosted under the Accelerator for Access to Tools against COVID-19 (ACTA), promoted by the World Health Organization (WHO), to guarantee access to vaccines against COVID-19.

In turn, the Covax Facility is the self-financing modality that allows Covax to negotiate with vaccine manufacturers, on behalf of participating economies, to ensure equitable access and share investment risks.

This participation will be done through the modality of “optional purchase” of the doses necessary to vaccinate 20% of the population at the time the antidotes are available and demonstrate safety and efficacy.

He explained that this method of purchase allows countries to choose, from the available portfolio, the vaccine that best suits their needs when it shows the two criteria mentioned.

Filed Under: Saliva Coronavirus Test

The post Mexican scientists design test to detect coronavirus through saliva appeared first on Hispanic World.

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