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What is Regeneron COVID-19 monoclonal antibody treatment?

The FDA approved it back in November as an emergency use drug for mild to moderate COVID-19 cases or for those who are high-risk.

HOUSTON — The Regeneron "cocktail" is probably best known as the monoclonal antibody treatment given to President Donald Trump after he contracted COVID-19.

Texas Gov. Greg Abbott, who recently tested positive for COVID-19, is also receiving Regeneron's monoclonal antibody treatment, his office says.

Monoclonal antibodies are laboratory-made proteins that mimic the immune system's ability to fight off harmful pathogens such as viruses.

RELATED: Gov. Greg Abbott tweets message after testing positive for COVID

The FDA approved it back in November as an emergency use drug for mild to moderate COVID-19 cases or for those who are high-risk, including those over 65 and anyone with a chronic medical condition.

The FDA has not approved it for those already hospitalized for COVID-19.

Both adults and children over the age of 12 can get it. Right now, both Florida and Texas have set up mobile clinics providing this treatment amid this surge of new cases.

It is available in the Houston area, but officials say demand is high and supply is tight, so it might not be an option for everyone.