At this point, the priority for doctors shifts from hoping that a person’s immune system can fight off the virus to trying to tamp down the immune response so it doesn’t kill the person or cause permanent organ damage. As Cron puts it, “If you see a cytokine storm, you have to treat it.” But treating any infection by impeding the immune system is always treacherous. It is never ideal to let up on a virus that can directly kill our cells. The challenge is striking a balance where neither the cytokine storm nor the infection runs rampant.
The problem with this balance is that it requires more care and monitoring.
Deciding on the precise method of modulating the immune response—the exact drug, dose, and timing—is ideally informed by carefully monitoring patients before they are critically ill. People at risk of a storm could be monitored closely throughout their illness, and offered treatment immediately when signs begin to show. That could mean detecting the markers in a person’s blood before the process sends her into hallucinations—before her oxygen level fell at all.
Hamblin explains that the problem being faced is not those over the age of 60 etc, but rather than immunity of the community.
The immune system is a function of the communities that brought us up and the environments with which we interact every day. Its foundation is laid by genetics and early-life exposure to the world around us—from the food we eat to the air we breathe. Its response varies on the basis of income, housing, jobs, and access to health care.
The people who get the most severely sick from COVID-19 will sometimes be unpredictable, but in many cases, they will not. They will be the same people who get sick from most every other cause. Cytokines like IL-6 can be elevated by a single night of bad sleep. Over the course of a lifetime, the effects of daily and hourly stressors accumulate. Ultimately, people who are unable to take time off of work when sick—or who don’t have a comfortable and quiet home, or who lack access to good food and clean air—are likely to bear the burden of severe disease.
I would guess that this is the concern in regards to the fear in Australia of the virus getting into indigenous communities.