Uber and Lyft have seen an uptick in business, as people afraid of using public transportation rely more on hailing rides. It’s unclear, however, how much guidance the two companies are offering their armies of contract workers on how to stay safe. Uber has asked drivers to wash their hands, while Lyft pointed drivers to the recommendations made by the Centers for Disease Control and Prevention.

Airbnb told hosts and guests affected by the coronavirus outbreak that they could cancel reservations without incurring a charge. So did TaskRabbit.

Business has boomed for companies that offer services to help people conduct meetings online, such as Zoom and BlueJeans.

Google announced that it was giving G Suite customers free access to the suite’s advanced features. These include the ability to hold virtual meetings with hundreds of participants, or stream live events to tens of thousands of people. Microsoft also announced that it was offering six-month free trials of Teams, a product to help employees video chat with one another.

Tackling misinformation

Social media companies began an aggressive response to misinformation related to the coronavirus.

Facebook’s chief executive, Mark Zuckerberg, outlined what his company was doing in a long post. He said Facebook was working closely with government groups like the World Health Organization. Any search for “coronavirus” on Facebook immediately directs people to the W.H.O. or local health authorities. Facebook has also pledged to give the W.H.O. unlimited free ads to share information about the coronavirus.

In addition, Facebook is removing misinformation about the coronavirus from its platform and Instagram, which it owns.

YouTube is also linking to the W.H.O. on the top of search results for the coronavirus. While videos spreading conspiracy theories on the coronavirus could still be found, they did not appear in the first page of search results for YouTube.