Moderna Inc. plans to develop and begin testing vaccines targeting 15 of the world’s most worrisome pathogens by 2025 and will permanently waive the company’s COVID-19 vaccine patents for shots intended for certain low-income and middle-income countries.

Takeda has touted the potential of the company’s Dengue vaccine for several years, and new long-term data reinforces the promise of the medication that could prevent the deadly mosquito-borne virus.

Genetically modified mosquitoes were released for the first time in the United States, taking flight in the Florida Keys in a pilot program intended to reduce the spread of deadly diseases such as dengue, yellow fever and the Zika virus.

A new study that analyzed the coronavirus outbreak in Brazil found a link between the spread of the virus and past outbreaks of dengue fever that suggests exposure to the mosquito-transmitted illness may provide some level of immunity against Covid-19.

Takeda Pharmaceutical Co.’s experimental dengue vaccine was highly effective at preventing the mosquito-borne disease in a late stage study, but TAK-003 failed to protect against one type of the virus in people with no prior exposure to dengue.

Prior infection with dengue, a mosquito-borne disease that infects nearly 400 million people a year, could reduce the risk of contracting Zika nearly by half, U.S. and Brazilian researchers reported.

Takeda Pharmaceutical’s experimental dengue vaccine appears to be safe and effective at preventing all four types of the mosquito-borne disease, meeting the main goal of a late-stage clinical trial.

Sanofi management expressed confidence that the company’s pipeline of new products will support long-term growth.

The Philippines will seek the return of 3 billion pesos ($59 million) it paid French drugmaker Sanofi for a dengue vaccine used to immunize hundreds of thousands of children that Sanofi has said could worsen the disease in some cases.

The Philippines has ordered French drugmaker Sanofi to stop the sale, distribution and marketing of its Dengvaxia dengue vaccine in the country.