That is a perfectly functioning vaccine. That is exactly how they are supposed to work.
Vaccines generally don't prevent infection (you can always breathe in this virus and the virus will always try to replicate, preventing breathing is not a vaccine that anyone wants to take). Vaccines let your immune system kick in quickly before the disease gets severe. If the disease replicates slowly, then vaccines let your immune system kick in before you notice the symptoms, but Covid is not a slow replicator.
True, for this vaccine. But we have eradicated many diseases completely with vaccines, like polio, etc. Well, until the anti vaxers spread BS, now some are coming back.
The vaccine do work to reduce severity. This particular case of Covid- 19 was milder than I could have ever imagined. Less than a cold. Very runny nose for two days, never got a temperature at all, been fine since Saturday, when my wife also tested positive. She felt fine, but tested again because she was supposed to take her 85 year old mother shopping.
It's weird how things have changed. I have a Dr.s appointment tomorrow for the fourth in a weekly series of knee injections. I called them to see if I should still come in. They said as long as I'm not coughing, or running a temperature, just wear a mask, or they will give me one when I come in, no problem.