Reuters reports that ultra-cold freezing facilities are in high demand as the US rolls out its public vaccination campaign.

US states, cities and hospitals are scrambling to buy freezers that can safely store Pfizer's COVID-19 vaccine at temperatures of minus 70 Celsius (minus 94 Fahrenheit), significantly below the standard for vaccines.

Moderna's vaccine can be stored at minus 20 Celsius.

Smithfield, owned by China's WH Group, has multiple "ultra-cold" freezers and will work with local authorities to provide assistance as needed, said Chief Administrative Officer Keira Lombardo, without providing details.

The company is "ready and willing to assist health agencies should storage capacity become constrained," she said in a statement to Reuters.

Thousands of meatpacking workers employed by Smithfield and rivals like Tyson Foods and JBS USA have been infected with COVID-19. Nearly 20 US meat plants were shut in the spring due to outbreaks, tightening supplies, raising prices and making meatpacking one of the industries most impacted by the pandemic in the United States. Smithfield may be able to keep Moderna's vaccine in static freezers that store meat before it is exported or sold, said Chris Hodges, a former senior vice president of business development for the company.

Other "blast" freezers that push cold air on to meat before it is moved into static freezers could potentially get cold enough to hold Pfizer's version, although it would be very expensive to run them for long periods of time, he said.

"As it becomes more clear that successful vaccines will become available, we have communicated our capabilities and continued willingness to partner with health officials, including with vaccine distribution and storage," Lombardo said.

Working with health agencies, Smithfield expects it can help distribute vaccines rapidly to food and agricultural workers hit hard by the pandemic, Lombardo said. The company also offered to aid distribution to other essential workers through healthcare offices at its facilities.

Meatpacking workers are considered essential in many states, but not at the top of the list for vaccines, which are expected to be distributed first to healthcare workers and nursing home residents.

Organisations representing food and meat companies have asked US President Trump and President-elect Joe Biden for priority access to vaccines for workers. Tyson Foods said in an e-mail to Reuters it was closely monitoring the development of vaccines and working with healthcare experts on planning and distribution models for employees.

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