Washington (CNN) A 100-page federal plan on how to tackle the coronavirus pandemic obtained by CNN shows the Trump administration is making contingency plans for a pandemic that could stretch up to "18 months or longer" and could include "multiple waves of illness."

Government agencies have also noted that it will be difficult to "forecast" how Covid-19 will spread and how severe an outbreak will be.

While not saying specifically that the administration believes the pandemic will last 18 months, the document lays out the contingency plans they are making have to assume a longer timeline to ensure preparedness.

For planning purposes, the administration is also preparing for a scenario where "supply chain and transportation impacts due to ongoing COVID-19 outbreak will likely result in significant shortages for government, private sector and individual U.S. consumers."

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