A High Intensity Ultrasound device (8W 1MHz) cures ALL infections – ½ a minute to each side of the chest, throat and nose. You will feel ill hour 4, better hour 8.
So an effective flu jab would top cancers – the major cash cow of medicine. So GPs tweak the flu jab, so it does not work that well. HIUS always does. The GP surgery has a 6W 3MHz device – which will core all infections in just 20 seconds.