In[]:=
PacletDirectoryAdd[FileNameJoin[{ParentDirectory[NotebookDirectory[]],"CoronavirusTools"}]]
Out[]=
{D:\git\wolfram-coronavirus\CoronavirusTools,D:\git\wolfram-coronavirus}
In[]:=
PacletFind["CoronavirusTools`"]
Out[]=
{}
In[]:=
Needs["CoronavirusTools`"]
Out[]=
$Failed