Some hospital information

One Sydney hospital has half of its 200 ventilators in use. Average period on a ventilator is 1 month.
Admissions with covid are predicted to double within a month.
The only treatment for unvaccinated patients, who are the bulk of admissions, is oxygen.
There are some drugs available to assist in treating vaccinated patients.
I'm surpised that there are no secondary infections, as say with influenza, able to be treated with antibiotics.