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Tuberculosis can be diagnosed in just two minutes with a new test that evaluates saliva.

Tuberculosis can be diagnosed in just two minutes with a new test that evaluates saliva.

According to Valdes Bollela, a professor in the Division of Infectious and Tropical Diseases of the Department of Clinical Medicine, Asian and Brazilian researchers study means for the examination to be done directly with the patient's fluids. "It is the idea of ​​having a test that is done with the least technological resource and as fast as possible." The classic example of this are malaria and HVI tests, which can be done outside the hospital itself. "he explained. He points out that because it is an infectious disease, the diagnosis becomes even more important. "It is the key to interrupting the tuberculosis transmission chain," he said.

The rapid test has been used in the Ribeirão Preto hospital for a year and a half. "We wanted to assess how much it would add from the point of view of cost, effectiveness and routine diagnosis," explained Bollela. In his evaluation, the test proved to be effective in all respects. "I can do it with much less time. The cost of it for testing is more or less $ 10," he said. In addition, he points out that the molecular test, which was done before, carried a higher risk of contamination. "It takes a lot of care, so we could not do this test every day. We could do it twice a week."

The culture, which is done in most cases with a sputum sample, takes between 10 and 14 days to indicate if mycobacteria are growing. The problem is that, in addition, it was necessary to wait another two or three days to attest to tuberculosis through molecular testing. "In doubt, the doctor, knowing that a mycobacterium has grown, was treating tuberculosis, but sometimes it was not. Now I can know with a great degree of certainty if what is in the growth of the culture is tuberculosis," he explained. Poct allows the diagnosis to be defined in minutes after the culture period. "Now we can do it almost immediately," said the researcher.

According to Bollela, the incidence of tuberculosis in Brazil is 90,000 cases per year. "Of these, between 85% and 90% are of the pulmonary type". In addition, about 4,500 people die annually because of the disease. "If you think you have treatment and that if you get it right the first time, you have a 100% cure chance, there are still a lot of people dying from a disease that has a cure," the professor said. He pointed out that between 10% and 20% of the cases are associated with seropositive patients. "This worsens the prognosis of HIV and increases the risk of complications from tuberculosis," he warned.


Clarify your main questions about meningitis

Clarify your main questions about meningitis

We selected the main doubts about meningitis and clarified with the neurologist Paulo Christos, coordinator of the scientific department of neuroscience of the Brazilian Academy of Neurology. Check it out: After all, is there more than one type of meningitis? Yes, there are many types of meningitis. To begin with, meningitis may be infectious or non-infectious.

(Health)

Air pollution may increase risk of stroke and heart attack

Air pollution may increase risk of stroke and heart attack

A 10 year review by Brown University (USA) points out that the probability of a stroke or infarction increases within the first 24 hours that a person is subjected to a "moderate" level of air quality (classification given by the United States Environmental Protection Agency). A total of 1,705 cases of strokes (also known as stroke or stroke) were compared with detailed data on atmospheric pollution levels.

(Health)