Say two similar people are exposed to different quantities of coronavirus particles. Is one of them likely to get sicker from the ensuing COVID-19 disease than the other?
Researchers have found the viral load in infected children to be very high, especially in the first 2 days of infection. We know that transmissibility or risk of contagion is greater with a high viral load.
Looking at the records of over 73 million patients in the US, of whom 12,033 had Covid-19, the study found those who had recently been diagnosed with a substance use disorder were significantly more at risk of Covid-19 than the average population.
A flurry of recent studies has shown that people with extra weight are more susceptible than others to severe bouts of disease. And experiments in animals and human cells have demonstrated how excess fat can disrupt the immune system.
This post answers some important question about long haulers. In essence some people experience symptoms like fatigue, shortness of breath, joint pain, chest pain, cough. These symptoms are not related to the severity of the infection.
Dr. Barzin explains that muscle pain that results from a viral infection is caused by damage to the muscle fibers from the virus itself. The virus also triggers an inflammatory response within your body—through inflammatory cytokines that essentially signal the immune system to get to work—that can cause abnormal tissue breakdown.
The coronavirus that causes COVID-19 has sickened more than 16.5 million people across six continents. It is raging in countries that never contained the virus. It is resurging in many of the ones that did. If there was ever a time when this coronavirus could be contained, it has probably passed. One outcome is now looking almost certain: This virus is never going away.
The number of people infected with the coronavirus in different parts of the United States was anywhere from two to 13 times higher than the reported rates for those regions. The findings suggest that large numbers of people who did not have symptoms or did not seek medical care may have kept the virus circulating in their communities.
In addition to impairing the immune and vascular systems and triggering cerebrovascular and neurological dysfunction, smoking and vaping often worsen the outcomes for patients who contract influenza or other respiratory or pulmonary diseases.
Researchers are beginning to test homeless individuals in the United States for the virus that causes COVID-19 — and are discovering that the situation is out of control: tests are rare and outbreaks are spreading below the radar.