Internet search giant Baidu has warned the deadly coronavirus outbreak could drive revenues down in the first quarter, as it reported steady annual revenue growth.

The Beijing-based group has forecast a plunge of between five percent and 13 percent due to the economic uncertainty surrounding the new virus, which is rapidly spreading around the world.

It is forecasting revenues between 21.0 billion yuan ($3.0 billion) and 22.9 billion yuan in the first three months of the year.

"The coronavirus situation in China is evolving, and business visibility is very limited," the firm said in its statement, adding that the outlook was "subject to substantial uncertainty".

The group's total revenues for the year ended December 31 rose five percent to 107.4 billion yuan ($15.43 billion), with income during October-December rising six percent on-year.

Considered China's answer to Google, Baidu has traditionally relied on advertising for much of its revenue.

But the ad sector is particularly vulnerable to economic slowdowns, and Baidu has had to battle with popular start-ups such as Bytedance.

Baidu has traditionally relied on advertising to build revenue but it is now trying to reposition itself as a leader in advanced technologies
Baidu has traditionally relied on advertising to build revenue but it is now trying to reposition itself as a leader in advanced technologies AFP / GREG BAKER

Baidu's online marketing revenues were 78.1 billion yuan for the year -- a drop of five percent.

Chairman Robin Li said the company had made "tremendous progress in strengthening Baidu's mobile ecosystem".

The firm has also been spending huge sums trying to reposition itself as a leader in advanced technologies such as artificial intelligence (AI) and driverless cars.

Revenue growth was driven largely by strong growth in cloud services, smart devices and its Netflix-style platform iQIYI.

Nasdaq-listed iQIYI added 19.5 million new subscribers over the year, and projected revenue gain of 2-8 percent this quarter.

The coronavirus outbreak has hit businesses across the country and beyond.

But China's streaming giants have seen an unexpected boost from millions of people stuck at home, and shares surged in January for the likes of iQiyi.

Baidu said it had "devoted significant efforts" to fighting the coronavirus, including facial recognition and AI technology to power screening systems that can remotely measure up to 200 people a minute.

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