As the damage caused by the Covid-19 pandemic is increasing worldwide, researchers are expanding on who is most at risk for infections, serious illnesses, and detailed information on deaths and deaths, previously only reported in China, but the outbreak began last year. In China.
Overall, the U.S. experience largely mimicked the experience in China, with Covid-19's risk of causing serious illness and death increasing with age. But an analysis released by the Centers for Disease Control and Prevention on Wednesday highlighted an important piece of information that underscores what infectious disease experts have been emphasizing: Millennials are not invincible. New data show that one in five infected people between the ages of 20 and 44 are already hospitalized, and 2% to 4% of them need treatment in an intensive care unit.
Nonetheless, the worst cases and highest mortality rates remain in the elderly. Experts from the US Centers for Disease Control and Prevention concluded in the Weekly Report on Incidence and Mortality that, although 17% of the US population is over 65, 31% of cases are in that age group. Although older people have more chances of getting infected than young people, such as by living in a nursing home, this is considered impossible because young people meet many others at work and school.
Instead, the higher incidence of cases among Americans strongly suggests that there is indeed a potential biological vulnerability that may be exacerbated by pre-existing diseases, which, according to Chinese data, greatly increases the risk of infection and serious illness.
The Centers for Disease Control and Prevention reports that this may explain why, although older Americans account for 31% of cases, they account for 45% of hospitalizations, 53% of ICU hospitalizations, and 80% of deaths.
In contrast, no young people under the age of 20 were admitted to the ICU or died.
This is also consistent with data from other countries. For example, in South Korea with a surge in cases, the mortality rate for Covid-19 patients aged 80 years and over is 10.4%, compared with 5.35% for patients in their 70s and 1.51% for patients aged 60 to 69, and 0.37% in The rate was found to be lower among young people in their fifties and dropped to zero among young people aged 29 and younger.
In a shocking development, however, Chinese scientists now report that new coronaviruses are not immune to young children. In the first retrospective study of Covid-19 in children in countries where the pandemic began, they calculated 2,143 children. They reported in the journal Pediatrics that more than 90% of them were mild or moderate, confirming earlier observations that children are at lower risk of serious illness. (This may be because molecules that allow the virus to enter human cells are poorly developed in children.)
But 6% of pediatric cases are severe or even critical, and adult cases are 19%. In an unexplainable finding, although no infants died, nearly 11% of Covid-19 infants were severe or critically ill. However, an important warning is that doctors believe that certain Covid-19 may be another respiratory disease, including respiratory syncytial virus, which is known to cause serious illness in children.