Vaccine Developers Take Closer Look at T-Cells

Rideshare Shares Take a Dive | Gasoline Prices Will Stay HighGasoline Prices Will Stay High | Created for {EMAIL} | [Web Version]( May 4, 2022 CONNECT WITH KIPLINGER  [LinkedIn]( [Facebook]( [Twitter]( [Instagram ]( [Youtube]( [SIGN UP]( ⋅ [WEBSITE]( [] What's in the Works [] Going forward, annual COVID-19 booster shots are likely to become the default U.S. policy, but not all experts agree these are needed.This default policy would derive from the fact that antibodies to COVID-19 infection decline over time after vaccination. While this is easy to measure, some experts note that the immune system is more than just antibodies. T-cells are important as well, and a group of 70 high-level scientists recently sent a letter to the Food and Drug Administration asking that the role of T-cells be studied more by COVID-19 vaccine developers. Evidence seems to suggest that even when antibody counts decline, T-cells play a role in providing longer lasting protection against the severe form of COVID-19. They remember what an invading virus looks like, and if the virus reappears in the future, they stimulate the production of B cells which produce new antibodies. So, while new infections may happen, both because new variants of COVID-19 can evade vaccine-produced antibodies, and because those antibody levels decrease over time, T-cells help protect the body from the worst effects of the new infection. [Passive Investing Is Not About Net Worth - It's About Cash Flow]( The most significant benefit of passive investing is the freedom it gives you. A steady flow of income generated by your real estate investments is the basis of your prosperity. It allows you to build wealth from a secure footing. [READ MORE]( ADVERTISEMENT [] Latest [] Shares of Uber Technologies ([UBER]() and Lyft ([LYFT]() were diving and cratering, respectively, Wednesday morning following their first-quarter earnings reports. And the big difference seems to be behind the wheel. Lyft, which shed more than a quarter of its value at the open, actually beat expectations (Revs: $876 million vs. $846 million est., EPS: 7 cents vs. -7 cents est.). But softer-than-expected rider numbers and second-quarter guidance fell short, with investors also balking at the company’s need to spend more on incentives to lure drivers. Uber, off high single digits this morning, lost $5.9 billion in the quarter, though that was largely due to equity investments in other companies. Revenues ($6.85 billion vs. $6.13 billion est.) were better than expected, however, and its driver issues seem comparatively muted: Uber doesn’t anticipate needing “significant incremental incentive investments” to keep up its driver base. “Lyft is being weighed down by real-world labor costs, and that’s why its shares have careened down the hill,” says Susannah Streeter, senior investment and markets analyst at British financial services firm Hargreaves Lansdown. “There has been some relief among investors that for now Uber isn’t in the same vulnerable position as Lyft in having to offer steep incentives to lure drivers back. The fact that its Uber Eats business thrived during the pandemic, while its ride-hailing services were forced to hibernate during lockdowns, would have helped with retention rates, whereas Lyft did not have that integrated service to fall back on and is having to pedal much harder to attract recruits back behind the wheel.” Free download, [The Kiplinger Letter's Forecast](. No information required from you. The most significant benefit of passive investing is the freedom it gives you. A steady flow of income generated by your real estate investments is the basis of your prosperity. It allows you to build wealth from a secure footing. 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