Infectados pelo coronavírus podem ter se curado sem desenvolver anticorpos

Estudos realizados na Alemanha, nos Estados Unidos e em Cingapura indicam que as células T podem levar à cura de pacientes infectados pelo novo coronavírus sem que estes cheguem a desenvolver anticorpos. Desse modo, podem ser inúteis testes que detectam a presença de anticorpos mesmo para quem comprovadamente contraiu a covid-19. As informações são de reportagem do jornal britânico The Telegraph.

As células T são a parte 2 de uma resposta trifásica à infecção. O vírus começa a se ligar a receptores nas membranas mucosas na parte posterior do nariz e da garganta. Nesse ponto, com a detecção de uma proteína estranha no corpo, a 1ª fase imune entra em ação. As chamadas células imunes “não específicas”, que respondem a qualquer invasor instantaneamente, começam a atacá-la. Se não puderem, o backup é chamado: células T.

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El antivirus más potente contra la COVID-19: nuestro sistema inmune

Más de 200.000 personas fallecidas, casi la mitad de la población mundial confinada, consecuencias sociales y económicas nunca imaginadas… Y todo ello es causado por un microorganismo, el SARS-CoV-2, que solo mide 120 nanómetros (o sea, 0,00000012 metros). Está claro que, en inmunología, no hay rival pequeño: a pesar de su tamaño, el coronavirus es capaz de poner en jaque nuestro sistema inmune (y nuestro mundo).

Aunque los datos disponibles son aún limitados, conocer los mecanismos implicados en la respuesta inmune frente a un virus como este puede ser crucial para entender la enfermedad y hacerle frente con contundencia.

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Quercetin and Vitamin D — Allies Against Coronavirus?






As the outbreak of novel coronavirus, COVID-19,1 continues to spread around the world,2researchers are feverishly searching for effective remedies. According to a February 15, 2020, Nature article,3 more than 80 clinical trials are underway testing remedies ranging from intravenous vitamin C and stem cells from menstrual blood to HIV drugs and malaria medication.

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Nutraceuticals have potential for boosting the type 1 interferon response to RNA viruses including influenza and coronavirus

NOX2-dependent oxidant production inhibits TLR7 signaling

In light of worldwide concern regarding the recent outbreak of a deadly novel strain of coronavirus in China, it is fortuitous that two recent discoveries point the way to effective nutraceutical measures for potentiating the type 1 interferon response to RNA viruses.

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Can vitamin C cure Coronavirus? scientists separate fact from fiction







Vitamin C is a common remedy that some people believe will cure a common cold and flu. Although it helps us maintain good immune function, there’s little evidence that it can prevent or substantially reduce either of these diseases. But in the midst of the novel coronavirus outbreak, some “influencers” are claiming that taking mega doses of vitamin C can cure COVID-19 (the disease caused by novel coronavirus).

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How to Help Prevent Contracting the coronavirus – it’s a good idea to know the basics of preventive measures you can take. Here are 3 strategies that can shore up your immune system to help you fight off the virus in case you are exposed to it.

1. Lower your stress.

Freaking out about a potential pandemic raises stress levels, which actually hurts your immune system and makes you more vulnerable to infections. Techniques to soothe stress include laughter, diaphragmatic breathing, prayer or meditation, listening to calming music, warming your hands with your mind, hypnosis and guided imagery, and flooding your 5 senses with positivity.

2. Eat foods that boost the immune system.

Foods that are natural immunity boosters include onions, mushrooms (shiitake, white button, portabella), garlic, vitamin C-rich foods (oranges, berries, peppers, dark leafy green vegetables), vitamin D-rich foods (fatty fish, eggs, tuna), zinc-rich foods (oysters, beef, lamb, spinach, asparagus, sesame and pumpkin seeds), and selenium-rich foods (Brazil nuts, seeds, grass-fed meats).

3. Take nutraceuticals that boost immunity and stave off infections.

In general, everyone should start taking a multivitamin, omega-3 fatty acids, and vitamin D whether you are healthy or not. Only about 25% of the U.S. population has healthy levels of vitamin D. Get yours checked and optimize your levels if necessary.