• Emergency Use Authorization (EUA) granted for individuals 65 years of age and older, and individuals ages 18 through 64 within certain high-risk groups
• EUA is supported by clinical data showing a booster dose of the Pfizer-BioNTech vaccine elicits high neutralization titers against SARS-CoV-2 and all currently tested variants
• Reactogenicity profile within seven days of the booster dose was typically mild to moderate, with frequency of reactions similar to or lower than after the primary vaccination series
• A booster dose given at least six months after completion of the primary vaccination series may help preserve a high level of protection against COVID-19

NEW YORK & MAINZ, Germany--(BUSINESS WIRE)-- Pfizer Inc. (NYSE: PFE) and BioNTech SE (Nasdaq: BNTX) today announced that the U.S. Food and Drug Administration (FDA) has authorized for emergency use a booster dose of the Pfizer-BioNTech COVID-19 Vaccine for individuals 65 years of age and older, individuals 18 through 64 years of age at high risk of severe COVID-19, and individuals 18 through 64 years of age whose frequent institutional or occupational exposure to SARS-CoV-2 puts them at high risk of serious complications of COVID-19 including severe COVID-19. The booster dose is to be administered at least six months after completion of the primary series, and is the same formulation and dosage strength as the doses in the primary series.

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?This first FDA authorization of a COVID-19 vaccine booster is a critical milestone in the ongoing fight against this disease,? said Albert Bourla, Chairman and Chief Executive Officer, Pfizer. ?Over the last year and a half, we have aimed to stay vigilant as the pandemic has evolved ? including evaluating the impact of a booster dose. We believe boosters have an important role to play in addressing the continued threat of this disease, alongside efforts to increase global access and uptake among the unvaccinated. Today?s FDA action is an important step in helping the most vulnerable among us remain protected from COVID-19.? ?Today?s emergency use authorization is supported by clinical data underlining that a booster induces a strong immune response against tested variants of concern and can address a current public health need. We will continue to monitor new SARS-CoV-2 strains, to be prepared for potential emerging escape variants,? said Ugur Sahin, M.D., CEO and Co-founder of BioNTech. ?We and our collaboration partner have submitted booster data to other regulatory agencies around the world. We are simultaneously working to expand access to our vaccines globally.? The FDA based this EUA on the totality of scientific evidence shared by the companies and?reviewed by the FDA?s Vaccines and Related Biological Products Advisory Committee (VRBPAC),including data from the Pfizer-BioNTech clinical program evaluating the safety, tolerability and immunogenicity of a booster dose of the COVID-19 vaccine. A booster dose of the vaccine elicited significantly higher neutralizing antibody titers against the initial SARS-CoV-2 virus (wild type), as well as the Beta and Delta variants, when compared with the levels observed after the two-dose primary series. The reactogenicity profile within seven days after the booster dose was typically mild to moderate, and the frequency of reactions was similar to or lower than after dose two. The adverse event profile was generally consistent with other clinical safety data for the vaccine. As a next step, the U.S. Centers for Disease Control and Prevention?s (CDC) Advisory Committee on Immunization Practices (ACIP) will meet to discuss a potential recommendation for the use and rollout of boosters to Americans. Pfizer and BioNTech continue to supply the vaccine, including sufficient volume for boosters, under their existing supply agreement with the U.S. government, which continues through April 2022. The companies do not expect the introduction of booster doses in the U.S. to impact the existing supply agreements in place with governments and international health organizations around the world. Pfizer and BioNTech have pledged to provide two billion doses to low- and middle-income countries in 2021 and 2022 ? at least one billion doses each year. Under the EUA in the U.S., a third dose of the vaccine was?previously authorized?for individuals at least 12 years of age who have undergone solid organ transplant, or who are diagnosed with conditions that are considered to have an equivalent level of immunocompromise. This authorization of a third dose for immunocompromised individuals ? administered at least 28 days following the second dose ? is separate and distinct from the booster dose authorized today. The third dose for immunocompromised individuals is meant to address the fact that these individuals sometimes do not build enough protection after two doses of the vaccine. In contrast, the booster dose authorized today refers to an additional dose of the vaccine that is given to those who have built enough protection after the primary vaccination series, but may have decreased protection over time due to waning of immunity. The Pfizer-BioNTech COVID-19 Vaccine, which is based on BioNTech?s proprietary mRNA technology, was developed by both BioNTech and Pfizer. BioNTech is the Marketing Authorization Holder in the United States, the European Union, the United Kingdom, Canada and the holder of emergency use authorizations or equivalents in the United States (jointly with Pfizer) and other countries. Submissions to pursue regulatory approvals in those countries where emergency use authorizations or equivalent were initially granted are planned. Indication & Authorized Use HOW IS THE VACCINE GIVEN? The vaccine will be given to you as an injection into the muscle. Primary Series: The vaccine is administered as a 2-dose series, 3 weeks apart. A third dose may be administered at least 4 weeks after the second dose to individuals who are determined to have certain kinds of immunocompromise. Booster Dose: A single booster dose of the vaccine may be administered to individuals:

• 65 years of age and older
• 18 through 64 years of age at high risk of severe COVID-19
• 18 through 64 years of age whose frequent institutional or occupational exposure to SARS-CoV-2 puts them at high risk of serious complications of COVID-19 including severe COVID-19

WHAT IS THE INDICATION AND AUTHORIZED USE? The FDA-approved COMIRNATY? (COVID-19 Vaccine, mRNA) and the EUA-authorized Pfizer-BioNTech COVID-19 Vaccine have the same formulation and can be used interchangeably. Although they may be manufactured in different facilities, the products offer the same safety and effectiveness. COMIRNATY (COVID-19 Vaccine, mRNA) is an FDA-approved COVID-19 vaccine made by Pfizer for BioNTech.

• It is approved as a 2-dose series for prevention of COVID-19 in individuals 16 years of age and older.
• It is also authorized under EUA to be administered to provide:

• a two-dose primary series in individuals 12 through 15 years;
• a third primary series dose in individuals 12 years of age and older who have been determined to have certain kinds of immunocompromise; and
• a single booster dose in individuals:

• 65 years of age and older
• 18 through 64 years of age at high risk of severe COVID-19
• 18 through 64 years of age whose frequent institutional or occupational exposure to SARS-CoV-2 puts them at high risk of serious complications of COVID-19 including severe COVID-19

The Pfizer-BioNTech COVID-19 Vaccine has received EUA from FDA to provide:

• a two-dose primary series in individuals 12 years of age and older;
• a third primary series dose for individuals 12 years of age and older who have been determined to have certain kinds of immunocompromise; and
• a single booster dose in individuals:

• 65 years of age and older
• 18 through 64 years of age at high risk of severe COVID-19
• 18 through 64 years of age whose frequent institutional or occupational exposure to SARS-CoV-2 puts them at high risk of serious complications of COVID-19 including severe COVID-19

EUA Statement Emergency uses of the vaccine have not been approved or licensed by FDA, but have been authorized by FDA, under an Emergency Use Authorization (EUA) to prevent Coronavirus Disease 2019 (COVID-19) in individuals 12 years of age and older. The emergency uses are only authorized for the duration of the declaration that circumstances exist justifying the authorization of emergency use of the medical product under Section 564(b)(1) of the FD&C Act unless the declaration is terminated or authorization revoked sooner. Please see EUA Fact Sheet at?www.cvdvaccine-us.com. IMPORTANT SAFETY INFORMATION Individuals should?not?get the Pfizer-BioNTech COVID-19 Vaccine if they:

• had a severe allergic reaction after a previous dose of this vaccine
• had a severe allergic reaction to any ingredient of this vaccine

Individuals should tell the vaccination provider about all of their medical conditions, including if they:

• have any allergies
• have had myocarditis (inflammation of the heart muscle) or pericarditis (inflammation of the lining outside the heart)
• have a fever
• have a bleeding disorder or are on a blood thinner
• are immunocompromised or are on a medicine that affects the immune system
• are pregnant, plan to become pregnant, or are breastfeeding
• have received another COVID-19 vaccine
• have ever fainted in association with an injection

The vaccine may not protect everyone. Side effects reported with the vaccine include:

• There is a remote chance that the vaccine could cause a severe allergic reaction? A severe allergic reaction would usually occur within a few minutes to one hour after getting a dose of the vaccine. For this reason, vaccination providers may ask individuals to stay at the place where they received the vaccine for monitoring after vaccination
• Signs of a severe allergic reaction can include difficulty breathing, swelling of the face and throat, a fast heartbeat, a bad rash all over the body, dizziness, and weakness
• If an individual experiences a severe allergic reaction, they should call 9-1-1 or go to the nearest hospital
• Myocarditis (inflammation of the heart muscle) and pericarditis (inflammation of the lining outside the heart) have occurred in some people who have received the vaccine. In most of these people, symptoms began within a few days following receipt of the second dose of the vaccine. The chance of having this occur is very low. Individuals should seek medical attention right away if they have any of the following symptoms after receiving the vaccine:

• chest pain
• shortness of breath
• feelings of having a fast-beating, fluttering, or pounding heart

• Side effects that have been reported with the vaccine include:
  • severe allergic reactions; non-severe allergic reactions such as rash, itching, hives, or swelling of the face; myocarditis (inflammation of the heart muscle); pericarditis (inflammation of the lining outside the heart); injection site pain; tiredness; headache; muscle pain; chills; joint pain; fever; injection site swelling; injection site redness; nausea; feeling unwell; swollen lymph nodes (lymphadenopathy); decreased appetite, diarrhea; vomiting; arm pain fainting in association with injection of the vaccine

• These may not be all the possible side effects of the vaccine. Serious and unexpected side effects may occur. The possible side effects of the vaccine are still being studied in clinical trials. Call the vaccination provider or your healthcare provider if you have any side effects that bother you or do not go away

Data on administration of this vaccine at the same time as other vaccines has not yet been submitted to FDA. Individuals considering receiving this vaccine with other vaccines, should discuss their options with their healthcare provider. Patients should always ask their healthcare providers for medical advice about adverse events. Individuals are encouraged to report negative side effects of vaccines to the US Food and Drug Administration (FDA) and the Centers for Disease Control and Prevention (CDC). Visit?http://www.vaers.hhs.gov?or call 1-800-822-7967. In addition, side effects can be reported to Pfizer Inc. at?www.pfizersafetyreporting.com?or by calling 1-800-438-1985. Please?click here?for full Prescribing Information (16+ years of age). Please?click here?for Fact Sheet for Vaccination Providers (12+ years of age). Please click?here?for the Recipients and Caregivers Fact Sheet. About Pfizer: Breakthroughs That Change Patients? Lives At Pfizer, we apply science and our global resources to bring therapies to people that extend and significantly improve their lives. We strive to set the standard for quality, safety and value in the discovery, development and manufacture of health care products, including innovative medicines and vaccines. Every day, Pfizer colleagues work across developed and emerging markets to advance wellness, prevention, treatments and cures that challenge the most feared diseases of our time. Consistent with our responsibility as one of the world's premier innovative biopharmaceutical companies, we collaborate with health care providers, governments and local communities to support and expand access to reliable, affordable health care around the world. For more than 170 years, we have worked to make a difference for all who rely on us. We routinely post information that may be important to investors on our website at?www.Pfizer.com. In addition, to learn more, please visit us on?www.Pfizer.com?and follow us on Twitter at?@Pfizer?and?@Pfizer News,?LinkedIn,?YouTube?and like us on Facebook at?Facebook.com/Pfizer. Pfizer Disclosure Notice The information contained in this release is as of September 22, 2021. Pfizer assumes no obligation to update forward-looking statements contained in this release as the result of new information or future events or developments. This release contains forward-looking information about Pfizer?s efforts to combat COVID-19, the collaboration between BioNTech and Pfizer to develop a COVID-19 vaccine, the BNT162 mRNA vaccine program and the Pfizer-BioNTech COVID-19 Vaccine (BNT162b2) (including a potential booster dose and emergency use authorization in the U.S. of a booster dose for individuals 65 years of age and older, individuals 18 through 64 years of age at high risk of severe COVID-19, and individuals 18 through 64 years of age whose frequent institutional or occupational exposure to SARS-CoV-2 puts them at high risk of serious complications of COVID-19 including severe COVID-19; qualitative assessments of available data; potential benefits; expectations for clinical trials; the anticipated timing of data readouts; regulatory submissions; regulatory approvals or authorizations; and anticipated manufacturing, distribution and supply) involving substantial risks and uncertainties that could cause actual results to differ materially from those expressed or implied by such statements. Risks and uncertainties include, among other things, the uncertainties inherent in research and development, including the ability to meet anticipated clinical endpoints, commencement and/or completion dates for clinical trials, regulatory submission dates, regulatory approval dates and/or launch dates, as well as risks associated with preclinical and clinical data (including the Phase 3 data), including the possibility of unfavorable new preclinical, clinical or safety data and further analyses of existing preclinical, clinical or safety data; whether and when our Phase 3 clinical trial will demonstrate protection from infection or disease following a booster dose, which is the subject of ongoing study; the ability to produce comparable clinical or other results, including the rate of vaccine effectiveness and safety and tolerability profile observed to date, in additional analyses of the Phase 3 trial and additional studies or in larger, more diverse populations following commercialization; the ability of BNT162b2 to prevent COVID-19 caused by emerging virus variants; the risk that more widespread use of the vaccine will lead to new information about efficacy, safety, or other developments, including the risk of additional adverse reactions, some of which may be serious; the risk that preclinical and clinical trial data are subject to differing interpretations and assessments, including during the peer review/publication process, in the scientific community generally, and by regulatory authorities; whether and when additional data from the BNT162 mRNA vaccine program will be published in scientific journal publications and, if so, when and with what modifications and interpretations; whether regulatory authorities will be satisfied with the design of and results from these and any future preclinical and clinical studies; whether and when applications for a potential booster dose will be filed in any other jurisdictions, whether and when data from BNT162b2 in younger pediatric populations will be submitted to the FDA and other regulatory authorities to request amendments to emergency use or conditional marketing authorizations and whether and when other biologics license and/or emergency use authorization applications or amendments to any such applications may be filed in particular jurisdictions for BNT162b2 or any other potential vaccines that may arise from the BNT162 program, and if obtained, whether or when such emergency use authorization or licenses will expire or terminate; whether and when any applications that may be pending or filed for BNT162b2 (including potential amendments to request use in younger pediatric populations, a potential booster dose or any other requested amendments to the emergency use or conditional marketing authorizations) or other vaccines that may result from the BNT162 program may be approved by particular regulatory authorities, which will depend on myriad factors, including making a determination as to whether the vaccine?s benefits outweigh its known risks and determination of the vaccine?s efficacy and, if approved, whether it will be commercially successful; decisions by regulatory authorities impacting labeling or marketing, manufacturing processes, safety and/or other matters that could affect the availability or commercial potential of a vaccine, including development of products or therapies by other companies; disruptions in the relationships between us and our collaboration partners, clinical trial sites or third-party suppliers; the risk that demand for any products may be reduced or no longer exist; risks related to the availability of raw materials to manufacture a vaccine; challenges related to our vaccine?s ultra-low temperature formulation, two-dose schedule and attendant storage, distribution and administration requirements, including risks related to storage and handling after delivery by Pfizer; the risk that we may not be able to successfully develop other vaccine formulations, booster doses or new variant-specific vaccines; the risk that we may not be able to create or scale up manufacturing capacity on a timely basis or maintain access to logistics or supply channels commensurate with global demand for our vaccine, which would negatively impact our ability to supply the estimated numbers of doses of our vaccine within the projected time periods as previously indicated; whether and when additional supply agreements will be reached; uncertainties regarding the ability to obtain recommendations from vaccine advisory or technical committees and other public health authorities and uncertainties regarding the commercial impact of any such recommendations; challenges related to public vaccine confidence or awareness; uncertainties regarding the impact of COVID-19 on Pfizer?s business, operations and financial results; and competitive developments. A further description of risks and uncertainties can be found in Pfizer?s Annual Report on Form 10-K for the fiscal year ended December 31, 2020 and in its subsequent reports on Form 10-Q, including in the sections thereof captioned ?Risk Factors? and ?Forward-Looking Information and Factors That May Affect Future Results?, as well as in its subsequent reports on Form 8-K, all of which are filed with the U.S. Securities and Exchange Commission and available at?www.sec.gov?and?www.pfizer.com. About BioNTech Biopharmaceutical New Technologies is a next generation immunotherapy company pioneering novel therapies for cancer and other serious diseases. The Company exploits a wide array of computational discovery and therapeutic drug platforms for the rapid development of novel biopharmaceuticals. Its broad portfolio of oncology product candidates includes individualized and off-the-shelf mRNA-based therapies, innovative chimeric antigen receptor T cells, bi-specific checkpoint immuno-modulators, targeted cancer antibodies and small molecules. Based on its deep expertise in mRNA vaccine development and in-house manufacturing capabilities, BioNTech and its collaborators are developing multiple mRNA vaccine candidates for a range of infectious diseases alongside its diverse oncology pipeline. BioNTech has established a broad set of relationships with multiple global pharmaceutical collaborators, including Genmab, Sanofi, Bayer Animal Health, Genentech, a member of the Roche Group, Regeneron, Genevant, Fosun Pharma, and Pfizer. For more information, please visit?www.BioNTech.de. BioNTech Forward-looking Statements This press release contains ?forward-looking statements? of BioNTech within the meaning of the Private Securities Litigation Reform Act of 1995. These forward-looking statements may include, but may not be limited to, statements concerning: BioNTech?s efforts to combat COVID-19; the collaboration between BioNTech and Pfizer including the program to develop a COVID-19 vaccine and COMIRNATY (COVID-19 Vaccine, mRNA) (BNT162b2) (including a potential booster dose of BNT162b2 in individuals 16 years of age and older in the U.S., a definite submission of a supplemental BLA for a potential booster dose of a variation of BNT162b2 having a modified mRNA sequence in the U.S., a BLA to support potential full FDA approval of BNT162b2 in individuals 12 through 15 years, whether and when applications for a potential booster dose will be filed in any other jurisdictions, qualitative assessments of available data, potential benefits, expectations for clinical trials, the anticipated timing of regulatory submissions, regulatory approvals or authorizations and anticipated manufacturing, distribution and supply); our expectations regarding the potential characteristics of BNT162b2 in our clinical trials and/or in commercial use based on data observations to date; the ability of BNT162b2 to prevent COVID-19 caused by emerging virus variants; the expected time point for additional readouts on efficacy data of BNT162b2 in our clinical trials; the nature of the clinical data, which is subject to ongoing peer review, regulatory review and market interpretation; the timing for submission of data for, or receipt of, any marketing approval or Emergency Use Authorization; our contemplated shipping and storage plan, including our estimated product shelf life at various temperatures; and the ability of BioNTech to supply the quantities of BNT162 to support clinical development and market demand, including our production estimates for 2021. Any forward-looking statements in this press release are based on BioNTech current expectations and beliefs of future events, and are subject to a number of risks and uncertainties that could cause actual results to differ materially and adversely from those set forth in or implied by such forward-looking statements. These risks and uncertainties include, but are not limited to: the ability to meet the pre-defined endpoints in clinical trials; competition to create a vaccine for COVID-19; the ability to produce comparable clinical or other results, including our stated rate of vaccine effectiveness and safety and tolerability profile observed to date, in the remainder of the trial or in larger, more diverse populations upon commercialization; the ability to effectively scale our productions capabilities; and other potential difficulties. For a discussion of these and other risks and uncertainties, see BioNTech?s Annual Report as Form 20-F for the Year Ended December 31, 2020, filed with the SEC on March 30, 2021, which is available on the SEC?s website at?www.sec.gov. All information in this press release is as of the date of the release, and BioNTech undertakes no duty to update this information unless required by law.

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