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Home / World

Covid 19 coronavirus: What would it take to vaccinate the whole world? Let's take a look

By Richard Pérez-Peña
New York Times·
4 May, 2021 06:00 AM7 mins to read

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A vaccination centre in Bangkok. Photo / Adam Dean, The New York Times

A vaccination centre in Bangkok. Photo / Adam Dean, The New York Times

Big-power muscle flexing helps explain much of the world's vaccine inequities, but there's another reason behind insufficient doses: The challenge of making them is unprecedented.

More than 600 million people worldwide have been at least partially vaccinated against Covid-19 — meaning that more than 7 billion still have not. It is a striking achievement in the shadow of a staggering challenge.

Half of all the doses delivered so far have gone into the arms of people in countries with one-seventh of the world's people, primarily the United States and European nations. Dozens of countries, particularly in Africa, have barely started their inoculation campaigns.

As wealthy countries envision the pandemic retreating within months — while poorer ones face the prospect of years of suffering — frustration has people around the world asking why more vaccine isn't available.

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Nationalism and government actions do much to help explain the stark inequity between the world's haves and have-nots. So, for that matter, does government inaction. And the power of the pharmaceutical companies, which at times seem to hold all the cards, cannot be ignored.

But much of it comes down to sheer logistics.

Immunising most of humanity in short order is a monumental task, one never attempted before, and one that experts say the world wasn't ready to confront. They note that things have already moved with unprecedented speed. A year and a half ago, the disease was unknown, and the first vaccine authorisations came less than six months ago.

But there is a long way to go. Here is a look at the reasons for the vaccine shortfall.

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Global capacity is limited

There are only so many factories around the world that make vaccines and only so many people trained in making them — and they were busy before the pandemic. Likewise, production capacity for biological raw materials, cell culture media, specialized filters, pumps, tubing, preservatives, glass vials and rubber stoppers is also limited.

"We're not suddenly stopping making every other vaccine," said Sarah Schiffling, an expert on pharmaceutical supply chains and humanitarian relief at Liverpool John Moores University in Britain. "We're adding this on top. We're basically doubling output. Supply chains of this magnitude usually take years to accomplish."

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The world's largest vaccine maker, the Serum Institute of India, is making the Covid-19 vaccine developed by AstraZeneca and the University of Oxford, and projects output of 1 billion doses this year, in addition to the roughly 1.5 billion doses it makes annually for other diseases. But it has taken months to ramp up to that pace.

With heavy investment from governments, businesses have overhauled factories, built new ones from the ground up and trained new employees, an effort that started last year and is still far from complete.

Wealthy nations could do more for the poor

The world's richer countries have pledged more than US$6 billion to Covax, the global effort to supply vaccines to the developing world at little or no cost.

But some of the pledges have not been fulfilled as yet. And in any case they amount to a small fraction of what the wealthy nations have spent on themselves, and a small fraction of the global need.

The Covax campaign also lost some ground when concerns emerged that the AstraZeneca shot — which was expected to be the backbone of the effort — might be tied to very rare but serious side effects. That led to some public wariness over using it.

Many public health advocates have called for Western governments to force drugmakers to share their own patented processes with the rest of the world. No vaccine producer has done so voluntarily, and no government has indicated that it will move in that direction.

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Given the world's limited production capacity, and how recently developed the vaccines are, patent sharing might not have significantly increased the supply at this moment. But down the road, as capacity expands, it could become a major factor.

The Biden administration has announced financial support for an Indian company, Biological E, to ramp up mass production of the Johnson & Johnson shot for people in other parts of the world. And the administration said that it would send up to 60 million doses of AstraZeneca's vaccine — which the United States has bought but isn't using — to other countries.

But the United States remains well behind China and Russia in such "vaccine diplomacy."

The United States and other countries have also restricted exports of some vaccine-making materials, drawing intense criticism, especially from India, as Covid ravages that country on a scale not seen anywhere else. India's own government has barred exports of finished vaccines, hampering immunisation efforts in Africa.

Last week, the Biden administration said it would relax export controls for India.

Governments could put more pressure on pharmaceutical companies

The United States and other developed countries invested billions of dollars in vaccine development and expansion of manufacturing, and they have spent billions more on the resulting shots. The US government also controls a crucial patent on a process used in vaccine making, and its National Institutes of Health helped develop the Moderna vaccine.

All of that gives governments tremendous power to compel companies to work across boundaries, corporate as well as national, but they have been reluctant to use it. In the United States, that has started to change since President Joe Biden took office in January.

"The government has huge leverage, the most over Moderna," said Tinglong Dai, an associate professor at Johns Hopkins University's business school who specialises in health care management.

Patents are one area where governments could be more aggressive about using their clout. But in the short run, Dai said, what would have had the greatest impact was if officials had acted earlier and more forcefully to insist that firms that develop vaccines make deals with their competitors to step up mass production.

That kind of cooperation has turned out to be essential.

President Biden at a news conference on coronavirus vaccinations in Washington last month. Photo / Al Drago, The New York Times
President Biden at a news conference on coronavirus vaccinations in Washington last month. Photo / Al Drago, The New York Times

Several Indian companies have agreed to make Russia's Sputnik vaccine. Sanofi, which is already taking part in production of the Pfizer-BioNTech and Johnson & Johnson inoculations, recently struck a deal with Moderna to work on its shot, too. Moderna already had deals with three other European companies.

The Biden administration pressed Johnson & Johnson to sign up its competitor, Merck, in March to produce its vaccine, and the government committed US$105 million to refit a Merck plant in North Carolina for that purpose.

Former President Donald Trump declined to invoke the Defense Production Act to give vaccine makers preferred access to the materials they needed, a step Biden has taken.

Producing vaccines is tricky. New ones are trickier

Even with an established product and stable demand, vaccine making is an exacting process. With a new shot, new production lines and mounting global expectations, it gets harder.

Both AstraZeneca and Johnson & Johnson, two of the world's largest pharmaceutical companies, have run into serious production problems with their Covid-19 vaccines — object lessons in the challenges of scaling up in a hurry from nothing to hundreds of millions of doses.

Preparing a dose of vaccine at a hospital in Munich, Germany. Photo / Laetitia Vancon, The New York Times
Preparing a dose of vaccine at a hospital in Munich, Germany. Photo / Laetitia Vancon, The New York Times

Adding to the difficulty, the Pfizer-BioNTech and Moderna shots are built on a snippet of the coronavirus' genetic code called messenger RNA, or mRNA. Until last year, that process had never been used in a mass-produced vaccine. It calls for different equipment, materials, techniques and expertise than standard vaccines.

The mRNA vaccines encase the genetic material in "lipid nanoparticles," microscopic bubbles of fat. Few facilities in the world have any experience mass-producing anything comparable. The vaccines also require ultracold temperatures, which experts say limits their use — at least for now — to wealthier countries.

Many pharmaceutical companies insist that they could take on that production, but experts say they would be likely to need considerable time and investment to prepare, a point that Stéphane Bancel, chief executive of Moderna, made in February at a European Parliament hearing.

Even in contracting with highly advanced firms to do the work, Bancel said, Moderna had to spend months essentially gutting facilities, rebuilding them to new specifications with new equipment, testing and retesting that gear and teaching people the process.

"You cannot go to a company and have them start right away to make mRNA product," he said.


Written by: Richard Pérez-Peña
Photographs by: Adam Dean, Al Drago and Laetitia Vancon
© 2021 THE NEW YORK TIMES

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