Silicon Valley’s reliance on the global economy, along with its use of agile just-in-time inventory and cheaper oversees manufacturing were supposed to be a strength. But not right now.

Experts worry those same strengths could expose the Bay Area to economic fallout from coronavirus that stretches well beyond canceled conferences and declining stock prices. Some say the outbreak could cause lasting damage to companies’ global supply chains, slowing product cycles and manufacturing.

“Silicon Valley will feel this perhaps more acutely than most regions around the country,” said Peter Leroe-Muñoz, the senior vice president of tech and innovation at the Silicon Valley Leadership Group.

That’s because tech companies rely more heavily on international partnerships than many other industries. Even their workforce is globalized, with employees from all over the world who often travel to and from affected countries for business or to visit family.

With dozens of tech conferences and business trips already canceled or postponed, the Bay Area’s tourism and travel industries are affected. In addition, thousands of travelers from China normally come through Bay Area airports. Those visitors tend to spend more locally than domestic tourists or even many other international travelers, according to Sean Randolph, a senior director at the Bay Area Council Economic Institute. That, too, will trickle through the local economy.

Russell Hancock, president and CEO of Joint Venture Silicon Valley, said companies can weather the loss from canceled conferences, but the workers who make those events happen are less resilient.

“They’re going to take a hit and they’re the least poised to take the hit because typically these are gig workers, contract workers,” Hancock said, noting that many live paycheck to paycheck. “This is going to have a disproportional impact on the service sector.”

But as the outbreak continues to affect manufacturing and supplies in China and elsewhere, tech companies will start feeling more pain.

“The biggest long-term issue relates to global supply chains and, for us, that’s especially important for technology-related products,” Randolph said. “So much of what goes into electronics and technology products today is manufactured in China.”

Palo Alto-based HP Inc. has already said the outbreak will hurt its earnings this year and Apple announced it likely won’t hit its quarterly sales projections. Bloomberg Economics estimates factories in China are operating at about 60 to 70 percent of capacity. Foxconn, which assembles Apple’s iPhones, said recently it was operating at 50 percent of normal capacity, according to the Wall Street Journal. Some factories are slowed down by a lack of workers, experts say. But like a Christmas light with a busted bulb, if the factory that makes one component in a product shuts or slows down, that affects the end result even if assembly plants are operating.

This week, famed venture capital firm Sequoia Capital Partners noted that the outbreak is already causing companies to miss their growth targets, and suggested in a blog post that some business might want to consider firing some workers to do “more with less.”

“Hardware, direct-to-consumer, and retailing companies may need to find alternative suppliers,” the firm’s post said. “Pure software companies are less exposed to supply chain disruptions, but remain at risk due to cascading economic effects.”

But it’s not just smartphones and laptops. Zenni Optical, an online eyeglasses seller based in Novato, is the perfect example of the challenges Bay Area companies face in the global economy. The firm’s manufacturing in Danyang, China — about 400 miles from the coronavirus epicenter in Wuhan — shut down for 10 days after the Lunar New Year, according to Sean Pate, brand communications officer at the company.

Once manufacturing resumed, the company started shipping glasses via FedEx directly from China to speed deliveries rather than routing them through their US distribution center. It also offered free shipping and future discounts to affected customers. It took the company about 10 to 12 days to recover.

But they’re hardly out of the woods. Pate said Zenni also depends on frame designers based in Italy, where 148 people have died from coronavirus and travel and work restrictions have been imposed.

“We don’t know what the impact is going to be in the Italian marketplace and how it affects the optical industry,” Pate said, adding that the company usually takes 9 to 12 months to cycle new products, so the repercussions might not be felt until 2021.

Randolph said some Silicon Valley companies face similar challenges.

“The concern now is that even if this recedes in China, you’re seeing it now crop up globally, you have the same set of issues at the global level,” Randolph said.

Travel bans enacted by big U.S. companies to protect employees could also have long-lasting effects because companies need in-person contact to do everything from developing new ideas to making sure manufacturing is in place to get those ideas into customers’ hands.

Normally, consumer electronics companies would be preparing their manufacturing infrastructure now for new products to unveil in the holiday season, according to Andre Neumann-Loreck, founder of On Tap Consulting, which helps companies set up and run manufacturing internationally, including in China. But On Tap isn’t sending anyone to China right now.

“Those builds are currently delayed, those schedules don’t have a lot of margin,” he said. “Now, those new product introduction schedules are delayed because factories are not coming back up, parts are missing.

“All of that puts holiday 2020 at risk,” he said.