Health

What is in the COVID-19 vaccines? What remains in our system after each type of vaccine, and for how long?

Our planet may be fittingly compared to the 1994 film, Speed: A bomb is planted on a bus and rigged to explode when the bus slows to less than 80 kilometres per hour. The bus barrels through Los Angeles, hitting obstacles and endangering the lives of passengers and pedestrians until a solution is found.

It was 1984 when hospitals in southern China were besieged by young people in a state of extreme agitation. Thousands of people, of both sexes, were suffering from panic attacks accompanied by fear of death because of the overwhelming belief that their sexual organs were retracting and disappearing, or that their nipples were retracting into their breasts.

Life in lockdown had an atypical rhythm and texture. While for some this upset their daily lives, for others it was an unexpected response to an unspoken need.

Breathing is an act most of us take for granted, and there seems to be plenty of oxygen to go around. Yet, according to the World Health Organization, the use of e-cigarettes (aka vaping) has been on a steady incline during the last few years.

Could it be true? Are we eating too much salt? Is too much salt dangerous or beneficial?

It was terrifying. They kept trying to comfort me by telling me they had the best surgeons. But they also said that I needed a new liver and that my body might reject it. – Christopher Herrera

How important is wearing a mask for preventing SARS-CoV-2 infection? We must say, at the outset, that wearing a mask remains important in preventing SARS-CoV-2 infection, especially because the "delta plus" variant has a high potential for contagion.

How long does the protection provided by the vaccine last? Should I have a booster shot after a while, or not?

Why can vaccinated people still get COVID-19 or even die from the disease?

Early reports out of China showed that elderly people and the chronically ill were most vulnerable to Covid-19. Yet an alarming number of young people in the United States have been hospitalized with severe infections. According to the Centers for Disease Control and Prevention, nearly 40% of American Covid-19 patients who were hospitalized were under 55 – and 20% were between ages 20...

If we had to choose a star among vitamins, a star similar to the celebrities that electrify the world of people, vitamin D would have a very high chance of occupying the podium.

I thought to myself: Is there an alarm or is it an end of day signal?

Noemina is a graduate of the University of Hertfordshire, UK, where she majored in health care. She is working in her field as of 2012. The journal excerpt she sent to us reflects her week-long experience at the epicentre of the battle with the new coronavirus in the intensive care unit, where serious cases are admitted.

How can I be sure that the recommendations I receive after a medical consultation are correct? In the article below, we discuss evidence-based medicine.