Drs. Maria Elena Bottazzi and Peter Hotez at the Center for Vaccine Development. Photo courtesy of Texas Children's Hospital

With the U.S. logging its highest single-day total of new COVID-19 cases (441,278 infections) and some 281, 808, 270 cases documented worldwide, new treatments worldwide are in major demand — especially in emerging nations.

To that end, Texas Children’s Hospital and Baylor College of Medicine announced a new COVID vaccine ready to deploy in India and soon, other underserved countries.

Corbevax, which is dubbed “The World’s COVID-19 Vaccine,” utilizes a traditional recombinant protein-based technology that will enable production at large scales, per a press release. That means the inoculation will be widely accessible to inoculate the global population.

This new vaccine was developed at Texas Children’s Hospital CVD and led by co-directors Drs. Maria Elena Bottazzi and Peter Hotez — and in-licensed from BCM Ventures, Baylor College of Medicine’s integrated commercialization team, to Hyderabad-based vaccine and pharmaceutical company Biological E. Limited (BE).

After completing two Phase III clinical trials involving more than 3000 subjects the vaccine was found to be safe, well tolerated, and immunogenic. Current research shows Corbevax notably effective against the Ancestral-Wuhan strain and the globally dominant Delta variant, press materials note.

Safe, streamlined, low-cost vaccines for middle- to low-income countries are central to the world’s fight against the COVID-19 pandemic, the two Houston organizations note. Indeed, without widespread vaccination of populations in the Global South, additional virus variants will arise, hindering the progress achieved by currently available vaccines in the United States and other Western countries, per research.

“This announcement is an important first step in vaccinating the world and halting the pandemic,” said Hotez in a statement. “Our vaccine technology offers a path to address an unfolding humanitarian crisis, namely the vulnerability the low- and middle-income countries face against the delta variant. Widespread and global vaccination with our Texas Children’s-Baylor-BE vaccine would also forestall the emergence of new variants. We have previously missed that opportunity for the alpha and delta variant. Now is our chance to prevent a new global wave from what might follow.”

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This article originally ran on CultureMap.

Texas Children's Hospital and Baylor College of Medicine are working on a new COVID-19 vaccine candidate. Photo by Dwight C. Andrews/Greater Houston Convention and Visitors Bureau

Houston health care organizations team up for the 'people's vaccine'

COVID Collaboration

Two major health care institutions in Houston — Texas Children's Hospital and the Baylor College of Medicine — are a step closer to rolling out what they dub the "people's vaccine" for COVID-19.

The two institutions, along with India-based vaccine and pharmaceutical company Biological E Ltd., have gained approval to move ahead this month with Phase III clinicals trials in India of a COVID-19 vaccine candidate called Corbevax. The Texas Children's Hospital Center for Vaccine Development developed the vaccine's protein antigen, which was licensed from the Baylor College of Medicine's BCM Ventures commercialization arm.

Unlike COVID-19 vaccines in the U.S., Corbevax contains the so-called "spike protein" from the surface of the novel coronavirus. Once that protein is injected via a vaccine, the body is supposed to begin building immunity against the protein and thereby prevent serious illness.

Experts envision Corbevax being a readily available weapon in the global fight against the COVID-19 pandemic, thanks to the simple vaccine platform (like the one used to prevent Hepatitis B) and the ability to store the vaccine in normal refrigerated settings. The targets of this vaccine are children and mothers.

"In the midst of India's public health crisis, it is our hope that our Texas Children's and Baylor COVID-19 vaccine can be released for emergency authorization in India and in all countries in need of essential COVID-19 vaccinations," Dr. Peter Hotez, co-director of the Texas Children's Hospital Center for Vaccine Development, says in a June 9 news release.

India has reported more than 29 million cases of COVID-19, causing 354,000 deaths. The country's COVID-19 surge reached its peak in May.

"The vaccines currently available cannot be manufactured quick enough to meet supply shortages in low-income countries," Hotez says. "Our vaccine is truly 'the people's vaccine,' created to serve the most marginalized and underserved populations that are hardest hit by this pandemic. This is the vaccine that could be used to vaccinate the world."

In the Phase III trial, the two-dose Corbevax vaccine will be administered to about 1,200 people age 18 to 80 at 15 sites in India. A larger global study of Corbevax is in the works.

According to India.com, Corbevax could be the most affordable COVID-19 vaccine available in the nation of nearly 1.37 billion people, costing close to $7 for a two-dose regimen. The Indian government already has preordered 300 million doses of Corbevax, which has shown promise in Phase I and Phase II trials. The Phase II trial ended in April.

If the Phase III trial goes as planned, doses could be widely administered as soon as August. Biological E initially plans to produce 75 million to 80 million doses per month, according to media reports. The Indian company foresees manufacturing at least 1 billion doses by the end of 2022.

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2 Houston space tech cos. celebrate major tech milestones

big wins

Two Houston aerospace companies — Intuitive Machines and Venus Aerospace — have reached testing milestones for equipment they’re developing.

Intuitive Machines recently completed the first round of “human in the loop” testing for its Moon RACER (Reusable Autonomous Crewed Exploration Rover) lunar terrain vehicle. The company conducted the test at NASA’s Johnson Space Center.

RACER is one of three lunar terrain vehicles being considered by NASA for the space agency’s Artemis initiative, which will send astronauts to the moon.

NASA says human-in-the-loop testing can reveal design flaws and technical problems, and can lead to cost-efficient improvements. In addition, it can elevate the design process from 2D to 3D modeling.

Intuitive Machines says the testing “proved invaluable.” NASA astronauts served as test subjects who provided feedback about the Moon RACER’s functionality.

The Moon RACER, featuring a rechargeable electric battery and a robotic arm, will be able to accommodate two astronauts and more than 880 pounds of cargo. It’s being designed to pull a trailer loaded with more than 1,760 pounds of cargo.

Another Houston company, Venus Aerospace, recently achieved ignition of its VDR2 rocket engine. The engine, being developed in tandem with Ohio-based Velontra — which aims to produce hypersonic planes — combines the functions of a rotating detonation rocket engine with those of a ramjet.

A rotating detonation rocket engine, which isn’t equipped with moving parts, rapidly burns fuel via a supersonic detonation wave, according to the Air Force Research Laboratory. In turn, the engine delivers high performance in a small volume, the lab says. This savings in volume can offer range, speed, and affordability benefits compared with ramjets, rockets, and gas turbines.

A ramjet is a type of “air breathing” jet engine that does not include a rotary engine, according to the SKYbrary electronic database. Instead, it uses the forward motion of the engine to compress incoming air.

A ramjet can’t function at zero airspeed, so it can’t power an aircraft during all phases of flight, according to SKYbrary. Therefore, it must be paired with another kind of propulsion, such as a rotating detonation rocket engine, to enable acceleration at a speed where the ramjet can produce thrust.

“With this successful test and ignition, Venus Aerospace has demonstrated the exceptional ability to start a [ramjet] at takeoff speed, which is revolutionary,” the company says.

Venus Aerospace plans further testing of its engine in 2025.

Venus Aerospace, recently achieved ignition of its VDR2 rocket engine. Photo courtesy of Venus Aerospace

METRO rolls out electric shuttles for downtown Houston commuters

on a roll

The innovative METRO microtransit program will be expanding to the downtown area, the Metropolitan Transit Authority of Harris County announced on Monday.

“Microtransit is a proven solution to get more people where they need to go safely and efficiently,” Houston Mayor John Whitmire said in a statement. “Connected communities are safer communities, and bringing microtransit to Houston builds on my promise for smart, fiscally-sound infrastructure growth.”

The program started in June 2023 when the city’s nonprofit Evolve Houston partnered with the for-profit Ryde company to offer free shuttle service to residents of Second and Third Ward. The shuttles are all-electric and take riders to bus stops, medical buildings, and grocery stores. Essentially, it works as a traditional ride-share service but focuses on multiple passengers in areas where bus access may involve hazards or other obstacles. Riders access the system through the Ride Circuit app.

So far, the microtransit system has made a positive impact in the wards according to METRO. This has led to the current expansion into the downtown area. The system is not designed to replace the standard bus service, but to help riders navigate to it through areas where bus service is more difficult.

“Integrating microtransit into METRO’s public transit system demonstrates a commitment to finding innovative solutions that meet our customers where they are,” said METRO Board Chair Elizabeth Gonzalez Brock. “This on-demand service provides a flexible, easier way to reach METRO buses and rail lines and will grow ridership by solving the first- and last-mile challenges that have hindered people’s ability to choose METRO.”

The City of Houston approved a renewal of the microtransit program in July, authorizing Evolve Houston to spend $1.3 million on it. Some, like council member Letitia Plummer, have questioned whether microtransit is really the future for METRO as the service cuts lines such as the University Corridor.

However, the microtransit system serves clear and longstanding needs in Houston. Getting to and from bus stops in the city with its long blocks, spread-out communities, and fickle pedestrian ways can be difficult, especially for poor or disabled riders. While the bus and rail work fine for longer distances, shorter ones can be underserved.

Even in places like downtown where stops are plentiful, movement between them can still involve walks of a mile or more, and may not serve for short trips.

“Our microtransit service is a game-changer for connecting people, and we are thrilled to launch it in downtown Houston,” said Evolve executive director Casey Brown. “The all-electric, on-demand service complements METRO’s existing fixed-route systems while offering a new solution for short trips. This launch marks an important milestone for our service, and we look forward to introducing additional zones in the new year — improving access to public transit and local destinations.”

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This article originally ran on CultureMap.