Who Makes Flublok?

Flublok is an innovative flu vaccine created by Protein Sciences Corporation, a biotechnology company based in Connecticut. As a revolutionary new flu vaccine, Flublok has been praised by healthcare professionals and the public alike. But who is behind this revolutionary vaccine? This article takes a look at who makes Flublok, and why it has become such a success.

Flublok is a flu vaccine made by Protein Sciences Corporation. It is the first flu vaccine made using insect cells, rather than chicken eggs, to produce the vaccine. Flublok is approved for use in adults aged 18 and older and is available in the United States. It has been found to be more effective than traditional flu vaccines in preventing the flu. It contains three times the amount of antigens, which are substances that trigger an immune response, as traditional flu vaccines.

Who Makes Flublok?

Flublok is an influenza vaccine designed to provide protection against certain strains of the flu virus. It is a trivalent recombinant influenza vaccine (RIV3) approved for adults 18 years and older in the United States. Flublok is made by Protein Sciences Corporation, a biopharmaceutical company based in Meriden, Connecticut.

How Flublok is Made

Flublok is the first and only FDA approved influenza vaccine made with a recombinant protein expression system. It is made by inserting influenza genes into an insect virus and then allowing it to reproduce in a special type of caterpillar cells. The virus particles containing the influenza genes are then purified to make the vaccine.

The vaccine is composed of three components: the recombinant hemagglutinin (HA) proteins, the influenza nucleoprotein (NP) antigen, and an adjuvant called Quil A. The HA proteins are produced in the insect virus, while the NP antigen is a protein derived from the influenza virus. Quil A is a saponin-based adjuvant that helps to enhance the immune response to the vaccine.

Benefits of Flublok

Flublok is the only influenza vaccine available that is made without the use of live influenza virus or chicken eggs. This makes it an attractive choice for people who are allergic to eggs or who may have weakened immune systems. It is also free from antibiotics and preservatives, making it a safe option for children and pregnant women.

Flublok has also been found to be more effective than other influenza vaccines in providing protection against certain strains of the flu virus. In one study, Flublok was found to be 88% effective in preventing all influenza-like illnesses caused by the three influenza strains contained in the vaccine.


Flublok is available in the United States for adults 18 years and older. It is available in both a single-dose and a two-dose formulation. It is available through healthcare providers and pharmacies, as well as online.

Related FAQ

Who Makes Flublok?

Answer: Flublok is a vaccine manufactured by Protein Sciences Corporation, a subsidiary of Sanofi Pasteur, the world’s largest vaccine maker. The company was founded in 1996 to develop new ways of making vaccines. Flublok is the first vaccine developed by Protein Sciences Corporation. It is made from the protein of a particular strain of the influenza virus that is grown in insect cells, instead of eggs.

Where is Flublok Manufactured?

Answer: Flublok is manufactured by Protein Sciences Corporation at their production facility located in Meriden, Connecticut. The facility is dedicated to the production of Flublok and other recombinant vaccines. It is a state-of-the-art facility that is designed to meet the highest standards for quality and safety.

How is Flublok Different from Other Vaccines?

Answer: Flublok is the first FDA-approved influenza vaccine that is made without the use of eggs. Traditional flu shots are made by growing the virus in chicken eggs, then purifying it. Flublok is made using recombinant DNA technology, which means that the virus is grown in insect cells and the purified protein is then used to make the vaccine. This method eliminates the risk of contamination from egg proteins, which can occur with traditional flu shots.

What Diseases Does Flublok Protect Against?

Answer: Flublok is an inactivated trivalent influenza vaccine that is approved for use in individuals 18 and older. It is designed to protect against the three influenza viruses that are most likely to cause the most severe cases of influenza in the United States each year. These are the two Influenza A viruses (H1N1 and H3N2) and one Influenza B virus.

Who Can Receive Flublok?

Answer: Flublok is approved for use in individuals 18 and older. It is recommended for those who are at high risk for serious complications from influenza, such as pregnant women, people with certain chronic medical conditions, and those 65 and older. It is also recommended for healthcare workers and other people who are in close contact with high-risk individuals.

What is the Dosage for Flublok?

Answer: The recommended dosage of Flublok is 0.5 mL administered as a single intramuscular injection. The injection should be administered into the deltoid muscle of the upper arm. It is important to note that Flublok should not be injected into the buttocks, as this could lead to reduced effectiveness.

In conclusion, Flublok is an innovative and safe influenza vaccine developed by the experts at Protein Sciences Corporation. It is made in the United States and is the only egg-free and preservative-free flu vaccine available on the market. Flublok is the result of decades of research and development by the team at Protein Sciences Corporation, who have dedicated themselves to providing an effective and safe influenza vaccine that can help protect people from the debilitating effects of the flu virus.

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