Ross Stores, Inc. (Nasdaq: ROST) has reported first-quarter fiscal 2023 earnings per share (EPS) of $1.09, surpassing the consensus estimate of $1.06. However, in after-hours trading, $ROST is experiencing a slight decline, currently trading at $105.24, reflecting a decrease of $0.14 (-0.13%).

Pfizer Inc. (NYSE: PFE) has announced a significant development in the field of vaccination. The FDA's Vaccines and Related Biological Products Advisory Committee has voted in favor of approving Pfizer's vaccine candidate for preventing respiratory syncytial virus (RSV) in infants through maternal immunization. 

RSV is a contagious virus that commonly causes respiratory illnesses. If approved, Pfizer's RSV vaccine candidate could become the first maternal immunization vaccine to protect infants from this potentially serious infection, starting from their first breath and continuing through the first six months of life. 

In after-hours, $PFE is trading at $36.56, reflecting a modest increase of $0.08 (+0.22%).

Lucy Scientific Discovery Inc. (Nasdaq: LSDI) has announced a significant partnership with TheraPsil aimed at advancing medical psilocybin access and research. This collaboration between Lucy and TheraPsil represents a significant milestone in expanding legal access to psilocybin for Canadian patients who are experiencing end-of-life distress and other serious medical conditions. 

In after-hours trading, $LSDI is showing a notable increase, currently trading at $1.56, reflecting a rise of $0.48 (+44.44%).

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