Pennsylvania confirmed its first two "presumed positive" cases of the coronavirus, Gov. Tom Wolf said during a news conference Friday morning.

The COVID-19 patients are adults from Delaware County and Wayne County. Officials said the patients appear to have contracted the virus outside of Pennsylvania. There is no indication that the virus has spread in the community.

The two patients and anyone who has been in close contact with them have been directed to self-quarantine in their homes for 14 days.

That two-week period is the standard for anyone with the virus, or believed to have been in contact with the virus.

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“There is a force of law behind these quarantines,” one state health official said in an early morning conference. “Their families will need to be quarantined as well. It would be illegal to go out.”

Tests at a lab near Philadelphia confirmed these patients as having the coronavirus on Friday. The test samples still need to be confirmed by the CDC. That is why they are considered "presumed positive" at this time. State Health Secretary Rachel Levine said she was not aware of any tests performed at the state level that were later found by the CDC to be incorrect.

Levine said the state was ready for an outbreak and expects more cases to be confirmed in the coming days.

State officials did not identify the patients and did not narrow down the location of the patients out of consideration for their privacy. Delaware County is in the Philadelphia suburbs, and Wayne County is in northeastern Pennsylvania.

One patient had traveled extensively in Europe, including to at least one country where the coronavirus is present. The other traveled to another state and was in contact with someone now confirmed to have the virus.

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“We anticipated this very scenario and have been preparing for Pennsylvanians to become impacted by this virus,” Wolf said. “This is not the first rapidly spreading virus we have faced in our commonwealth, and it will not be the last. We are prepared to mitigate the spread of this virus.”

Pennsylvania will be able to test up to about 150 cases per day by this weekend, Levine said.

Wolf said he will make a general disaster declaration for the state to improve the ability to work across agencies and improve the coordinated response needed for this public health emergency.

This is a developing story. Check back for more details.

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Five Pa. schools closed for precaution

Five schools in Pennsylvania were closed Friday after several individuals were exposed to a confirmed case of coronavirus that originated in another state.

Superintendent of the Central Bucks School District John Kopicki said that he was informed by Dr. David Damsker, director of the Bucks County Health Department, and Dr. Sharon Watkins, state epidemiologist of the Pennsylvania Department of Health, about the exposure.

The schools will be deep-cleaned.

Wolf said the two presumed positive cases are unrelated to the school cases.

Across the United States, at least 233 cases of COVID-19 have been confirmed. Colorado, Maryland, Nevada and New Jersey reported their first encounters with infection on Thursday. At least 12 Americans and more than 3,400 people globally have died from the virus.

The Vatican reported its first case on Friday. And President Donald Trump canceled a trip to the U.S. Centers for Disease Control and Prevention, then changed his mind when a test for a suspected case there turned up negative.

Keep up to date on coronavirus

The state Department of Health has established a section of its website for updates and guidance on dealing with the spread of the coronavirus.

“As this situation evolves, we will continually update Pennsylvanians through our website, health.pa.gov, our Facebook page and our Twitter account,” Levine said in a news release Friday. “It’s important to remember that the most accurate and timely information regarding this outbreak is available through the Department of Health.”

Anyone in Pennsylvania who thinks they might have been exposed to the virus should call their primary care physician and coordinate whether and how to be tested. A lab in Exton is able to quickly assess whether a sample is positive for COVID-19, and the patient does not need to pay for that test, Levine said. Tests are forwarded to the Centers for Disease Control and Prevention in Atlanta for verification.

No one, she said, should be denied a test for COVID-19 because of the cost.

Beware price gouging

Attorney General Josh Shapiro tweeted a warning to merchants and consumers on Friday afternoon.

"Governor Tom Wolf's COVID-19 disaster declaration triggered protections under state law against price gouging for consumers and businesses," the tweet reads.

Under rules governing a disaster emergency, "companies and vendors are prohibited from charging a price for consumer goods or services that exceeds 20 percent of the average price to which those goods or services were sold for in the seven days preceding the date of declaration," a news release from the AG's office said.

"Merchants should be put on notice: you cannot use a public health emergency as a business opportunity."

Consumers who suspect merchants of raising prices to take advantage of the health emergency are encouraged to contact the attorney general's office at pricegouging@attorneygeneral.gov.

Shapiro said the email address was created to protect Pennsylvanians from "being taken advantage of."

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USA Today, the Bucks County Courier Times and The Associated Press contributed to this report.