
Ebola can be considered moderately contagious, because the virus is not transmitted through the air. The most contagious diseases, such as measles or influenza, virus particles are airborne.
Companies that are part of the growing effort to find an effective treatment for the deadly Ebola virus:
Pharmaceuticals
- Ibio (IBIO) - may become part of the government's effort to ramp up production of ZMapp. The experimental drug was developed by privately-held Mapp Biophamaceuticals and used to save the lives of two American health workers who were infected but recovered.
- Mapp Biopharmaceutical (private): Mapp’s therapy for Ebola, known as ZMapp, is getting a lot of attention for its ability to treat the disease, even if the company is getting no mileage in the stock market. ZMapp has been was used to treat two U.S. health workers who were infected but recovered. Three Liberians were treated with ZMapp, one of whom died. An elderly Spanish priest died after using the drug, but a British nurse working in Sierra Leone recovered after receiving ZMapp.
- Lakeland Industries (LAKE) - hazmat-suit maker
- Alpha Pro Tech (APT) - face mask maker
- Tekmira Pharmaceuticals (TKMR) was working on the TKM-Ebola drug. Development of TKM-Ebola was terminated in mid June 2015 during a Phase II trial, for lack of efficacy. The next month, Tekmira changed its name to Arbutus Biopharma.
Current ebolavirus outbreak (May 2026)A Bundibugyo ebolavirus outbreak (a different strain from Zaire) in DRC and Uganda prompted a rapid WHO PHEIC declaration. Existing Zaire-specific vaccines (Merck, J&J) and treatments (Regeneron, etc.) do not directly protect against or treat Bundibugyo. No approved countermeasures exist for this strain yet, though experimental options (e.g., potential monoclonal antibodies, remdesivir from Gilead/GILD, or candidates from Moderna/MRNA) are under evaluation.This limits immediate revenue upside for existing products but could drive broader R&D funding, stockpiling, and preparedness contracts for big pharma and biotechs involved in filovirus research.
Previous Ebola outbreaks
Previous Ebola outbreaks
Merck & Co. (MRK) is the primary publicly traded company with a direct, approved Ebola vaccine (Ervebo/rVSV-ZEBOV), targeted against Zaire ebolavirus.Ervebo is WHO-prequalified, FDA-approved (including for children), and part of a global stockpile managed by the International Coordinating Group (ICG) for outbreak response. Merck has ongoing partnerships, such as a recent $30 million CEPI collaboration (announced Jan 2026) to improve manufacturing, lower costs, and enhance accessibility for low- and middle-income countries.Johnson & Johnson (JNJ) has a two-dose regimen (Zabdeno/Mvabea, Ad26.ZEBOV + MVA-BN-Filo) also approved/prequalified for Zaire ebolavirus, developed with Bavarian Nordic. It is less ideal for rapid outbreak response due to the dosing schedule but supports broader preparedness.Regeneron (REGN) has Inmazeb (REGN-EB3), an FDA-approved monoclonal antibody cocktail treatment for Zaire ebolavirus, with stockpiling deals and donations for at-risk countries. Ridgeback Biotherapeutics has Ebanga (mAb114), another approved treatment (not publicly traded).




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