A growing number of Milwaukee public school students are taking their school travel plans offline in preparation for the mosquito-borne virus that has caused a spike in reported cases.

Key points:The outbreak of the Zika virus in Brazil has been blamed on a small group of travel agentsWhile the Centers for Disease Control and Prevention is warning of a “significant” threat of the virus in the US, the number of cases is growing at a slower rate than in Brazil, where it has been linked to a small number of travel firms and hotels.

“It’s just an ongoing concern for our students.

They are the ones that are the most at risk,” said school resource officer for the Milwaukee Public Schools, David Burt.”

We don’t know if they are at risk or not.

But we have a very high incidence rate.

It’s a big problem,” he said.

The Wisconsin Department of Public Health (DPH) said it has received more than 50 reports of cases in the state since the beginning of the month.

The number of confirmed cases has grown by over 700 per cent to nearly 3,000 since the start of February.

The state’s Health Department has recorded more than 1,000 cases, including a pregnant woman who tested positive for the virus.

The district is advising students to get tested and is looking at ways to boost student attendance.

It is not clear how long it will take for the district to clear all of the cases, but the district has started screening and preparing for a surge of cases.

The department said it was still “aware of a number of additional cases that may be occurring in Milwaukee public high schools”.

The department also advised students to keep their phones and other electronic devices out of reach of mosquitoes and to wear protective clothing.

In addition, it advised students who have not been tested to have their personal belongings tested.

“We are monitoring the number and type of cases and will be sharing updates as we find more,” the department said.

“If you have any questions or concerns about your student travel, contact the school’s travel department.”

The department is encouraging students to use public transportation, avoid visiting isolated areas, and to check the school website for the latest information.