Pfizer Gave $4,000 to Maryland Vaccine Committee Chairman Senator Bill Ferguson

Maryland State Senator, chairman of the Vaccine Oversight Workgroup, received a $4,000 campaign contribution from Pfizer. Is this a conflict of interest?

Sources: https://cdn.pfizer.com/pfizercom/investors/corporate/2019-2020_Pfizer_PAC_and_Corporate_Political_Contributions_Report.pdf
https://www.youtube.com/watch?v=284VTWSo2to