In a widely anticipated move, and following several countries’ earlier approval, the Food and Drug Administration approved the use of Pfizer and Moderna booster shots today, for certain immunocompromised individuals, specifically, solid organ transplant recipients or those who are diagnosed with conditions that are considered to have an equivalent level of immunocompromise.

                By                    Yaёl Bizouati-Kennedy

See: Need To Prove You’re Vaccinated? Here’s How To Add Your COVID-19 Card To Your Phone Find: The Best Resources for Financial Help Post-COVID-19

The approval for the third shot will bring in billions for both pharmaceutical companies, in a market that could rival the $6 billion in annual sales for flu vaccines for years to come, analysts and healthcare investors say, Reuters reports.

So, is now a good time to buy these stocks?

CFRA raised its opinion on shares of Pfizer Strong Buy from Buy, following the FDA decision.

As for Moderna, the stock fell 16% Wednesday as investors seemed to struggle to value shares that have nearly tripled in value this year, Barron’s reported, adding that the stock was up more than 300% over that period, beating the S&P 500, which climbed 18.%.

Moderna’s stock was up 1.56% this morning, at $397.51, while Pfizer’s was up 1.61%, at $48.

See: Moderna Enters the S&P Amid Delta Variant Fears – Should You Invest? Find: Stimulus Update: New Bill Proposes Expansion of Worker Benefits on the Heels of Child Tax Credits and COVID Relief Checks

“The country has entered yet another wave of the COVID-19 pandemic, and the FDA is especially cognizant that immunocompromised people are particularly at risk for severe disease. After a thorough review of the available data, the FDA determined that this small, vulnerable group may benefit from a third dose of the Pfizer-BioNTech or Moderna Va. Today’s action allows doctors to boost immunity in certain immunocompromised individuals who need extra protection from COVID-19,” acting FDA Commissioner Janet Woodcock, said in a statement.

“As we’ve previously stated, other individuals who are fully vaccinated are adequately protected and do not need an additional dose of COVID-19 vaccine at this time. The FDA is actively engaged in a science-based, rigorous process with our federal partners to consider whether an additional dose may be needed in the future.”