Thursday 24 June 2021

Costa Rica scientists work on saliva tests to detect covid-19

First results give positive signals about the work carried out by experts from the UCR, the TEC and the UNA

QCOSTARICA – More than 20 researchers from Costa Rica’s public universities have been working on a saliva test with which to more quickly diagnose whether a person has covid-19 or not.

When the result is negative, the sample is red and yellow when it is positive for covid-19.

Scientists expect to have the first prototype completed soon, currently verifying laboratory analysis of the use of synthetic genes designed by the University of Costa Rica (UCR), which has yielded very positive results.

- Advertisement -

“The first results show that the tests achieved a sensitivity of 94.4% (ability of the test to detect disease) and a specificity of 100% (exclusion of healthy individuals). The percentages obtained are very high. This means that the test has great potential to help the diagnosis of covid-19,” said Dr. German Madrigal, director of the Institute of Pharmaceutical Research (Inifar), of the UCR Faculty of Pharmacy.

Cheaper

Costa Rican scientists designed synthetic SARS-CoV2 genes and artificial saliva to counteract the results with the PCR test, both should give the same result. If they pass this phase and two more pending, in a few months the UCR could share the results obtained with the Caja Costarricense de Seguro Social (CCSS) and the Ministry of Health for its production.

The test does not need specialized equipment and personnel to take the sample and process it, which makes it cheaper.

These tests could be up to 70% cheaper than PCR.

- Advertisement -

How does it work? A saliva sample is taken from the person or can be self taken in a sterile container such as one used to collect feces or urine, without exposing Health personnel. It is then heated to 95 degrees Celsius and results are obtained in an hour, without having to go through a laboratory or specialized equipment.

If the result is positive it turns yellow, and red if negative.

The idea is that this rapid test complements the PCR tests and allows the country more options.

The third phase of validation is to develop a protocol to develop a study that uses real samples from anonymous patients positive for covid-19, previously diagnosed with a PCR test.

If the rapid test really works, the result should also be positive.

“At the moment we are joining Central American colleagues as they have a similar project, they just started in a different way. They already have the patient protocols and permits, but not the tests. We have the tests, but not the protocols and permission to study patients,” commented Dr. Madrigal.

- Advertisement -

- Advertisement -

FACT CHECK:
We strive for accuracy in its reports. But if you see something that doesn’t look right, send us an email. The Q reviews and updates its content regularly to ensure it’s accuracy.

Q Costa Rica
Reports by QCR staff

Related Articles

Germany opens borders to Ticos from this Friday!

QCOSTARICA - Good news for Ticos with traveling fever! From Friday,...

MOST READ

Since 2018 MECO has received contracts from the State for more than ¢139 billion

QCOSTARICA - Almost ¢140 billion colones (US$227 million dollars) is the amount the MECO construction company was able to snare for public works contracts...

Today 50 years ago: Costa Rica and Panama entered into conflict over air routes

TODAY COSTA RICA - Original text published in La Nacion on June 23, 1971 - A conflict over air routes, has been unleashed between...

New tax exemptions would be the hook to attract high-tech and science companies

QCOSTARICA - Strengthen the attraction of Costa Rica to attract high-tech, innovative, and science companies to invest, is an initiative that stands out in...

Today’s Vehicle Restriction June 18: 9 & 0 CANNOT circulate

Today, Friday, June 18, vehicles with plates ending 9 & 0 CANNOT circulate The measure is countrywide and applied between 5:00 am and 9:00 pm,...

The Best Sports To Play On A Beach

Costa Rica has some of the best beaches in the world. The coastline is blessed with golden sand, beautiful palm trees, and perfect blue...

The United States will distribute 55 million vaccines against Covid-19 in Latin America, Africa and Asia

QCOSTARICA - The United States presented on Monday a plan to share 55 million doses of coronavirus vaccines worldwide, with approximately 75% of the...

Rodolfo Méndez rules out new contracts for MECO and H Solís

QCOSTARICA - No more soup for you! If the Minister of Public Works and Transport (MOPT), Rodolfo Méndez, has his way, the H. Solís...

Weather, friendly locals, cost of living: expats in Mexico, Costa Rica enjoy same things

EXPAT FOCUS (MND) Of course it was no surprise that readers of Mexico News Daily voted Mexico as the No. 1 expat destination in...

Week immersed in passage of tropical wave, June Solstice and Veranillo

QCOSTARICA - Today, Monday, June 21, is the day of the year when the sun stays the longest on the horizon, therefore it is...

WANT TO STAY UP TO DATE WITH THE LATEST!

Get our daily newsletter with the latest posts directly in your mailbox. Click on the subscribe and fill out the form. It's that simple!

Log In

Forgot password?

Forgot password?

Enter your account data and we will send you a link to reset your password.

Your password reset link appears to be invalid or expired.

Log in

Privacy Policy

Add to Collection

No Collections

Here you'll find all collections you've created before.