New High-Precision Rapid Tests for COVID-19 Developed in the United States

28 de octubre de 2025

1 min de lectura

Scientists at the University of Maryland School of Medicine have developed two tests for coronavirus that are comparable in accuracy to tests used in laboratories. The results can be obtained in 5 minutes.

Puntos clave

Scientists at the University of Maryland School of Medicine have developed two tests for coronavirus that are comparable in accuracy to tests used in laboratories.

Para quién es

Personas que exploran Coronavirus a través de coronavirus, innovation.

Por qué importa

Este artículo te ayuda a orientarte rápidamente y luego avanzar a una colección o serie si quieres seguir profundizando.

Autor del artículo

Darya

Escritora, Ornament

The main difference between the tests and the widely used PCR test is that they do not require the extraction of RNA from the virus, which is both difficult and time-consuming. At the same time, they are much more accurate than express antibody tests, which only respond to a very high viral load.

The first test was called the antisense test, which detects the presence of the virus in a smear sample using an innovative technology called electrochemical sensing. The prototype test looks like a glucose meter, so it can easily be used at home.

Antisense has already been approved by the FDA and is now in the last stage of testing, which shows it to be 98 % accurate. This is comparable to a PCR assay.

The second test also doesn't require access to a lab or sophisticated equipment. It uses a highly specific molecule attached to gold nanoparticles to detect a protein. This protein is part of a genetic sequence unique to the COVID-19 virus. When the virus is detected, the gold nanoparticles change the color of the liquid reagent from purple to blue. Preliminary tests of the test system showed that it can detect the virus on the first day of infection.

According to the authors of the study, rapid and highly accurate tests will dramatically reduce the spread of COVID-19, including new strains.

Source: https://www.nature.com/articles/s41596-021-00546-w

Seguir leyendo

Coronavirus#vacunación

Which Coronavirus Vaccine is the Best?

According to the World Health Organization (WHO), 48 vaccines have been tested in different countries, with 11 passing through to phase III of trials. Meanwhile, another 164 alternative vaccines are passing preclinical testing.

Dra. Vera28 oct 2025

Coronavirus#coronavirus

What Vitamins Help With Recovery From COVID-19?

Any viral infection, whether it is ARVI or temperature, changes the human immune system. People who have had COVID-19 claim that after the disease they began to notice a constant loss of strength, decreased performance, lethargy, deterioration of mood, headaches, shortness of breath during exercise, and exacerbation of chronic diseases. What vitamins should be taken to "invigorate" the immune system after COVID-19?

Dra. Diana28 oct 2025

Salud cardiovascular#ataque cardíaco

Even Slightly Elevated Thyroid Hormone Levels Can Cause Sudden Cardiac Arrest

The risk of death from a heart attack was found to be almost equal in patients with severely elevated thyroxine levels and those whose levels were normal but closer to the upper limit.

Darya28 oct 2025

Ornament Blog#covid-19 test

¿Cómo puede afectar el cáñamo a la COVID-19?

Los científicos han identificado recientemente componentes en el cannabis que pueden impedir que el COVID-19 entre en las células humanas.

Alina28 oct 2025

Instala Ornament para no solo leer estos artículos, sino también hacer seguimiento de tu salud, guardar resultados de análisis y acceder a otras funciones útiles

Instalar Ornament