Original Covid vaccines and Omicron boosters were highly effective in preventing serious illness in 2021 and 2022, but protection waned over time as the virus mutated. At the end of 2023, the protection against serious illness from the original vaccine and Omicron boosters had declined and was not much different from protection present in unvaccinated, previously infected people. But this framing may overstate the risks to public health. At this point, 99% of people have had at least one vaccine dose, have been infected, or have had both an infection and a vaccine; and so far, both vaccine-induced and acquired immunity from prior infection are holding up well. While the latest XBB booster is not protective against infection it is still highly effective at preventing serious disease, and more protective than being unboosted and Covid vaccines/boosters also reduce risks of long Covid, which you do not want to get.
- Date Posted:
- January 23, 2024
The best measure America has of undocumented, or illegal, migration is apprehensions at the southern border. These numbers are tricky to handle. They tend to go up when the economy is hot (it is generally under-appreciated that illegal migration surged in 2019 when Mr Trump was president). Covid-19 allowed the federal government to quickly expel migrants who crossed the south-western border under a public-health measure called Title 42, which stayed in place until long after the worst of the pandemic was over. But those who were deposited on the Mexican side of the border often attempted to cross again. This partly explains the spike in encounters. Democrats who do not live in border states tend not to realise that the “border chaos” that Republicans talk about is real. That was until Republican politicians in those border states began shipping migrants to big Democratic cities such as New York and Chicago.