How would an antibiotic help with a viral infection? Might as well start using some essential oils and homeopathy. If that regimen actually worked, we'd probably see it more widely used and studied.
They investigate each death reported to VAERS to see if it was actually vaccine related. Given how many millions of doses were given out, and especially to people that were already old or clinging on to life, 3,544 is not unexpected. None of those were directly attributable to the vaccine.