Last week I made some changes to my moderate and aggressive portfolios. I’ll share those changes with you at the end of this column. But let’s not bury the lead — we are close to a COVID-19 vaccine! On Sept. 23 I gave a rundown of what I expected regarding the timing and distribution of a COVID-19 vaccine. I stated, “Pfizer CEO Albert Bourla says that the ‘likely scenario’ is that the company will be able to distribute a vaccine by year’s end (pending FDA approval).” Further, I said: “The odds of a safe and effective vaccine being created relatively soon…