span>      <span class="identifier">bodos_flu</span><span class="special">(</span><span class="identifier">from_string</span><span class="special">(</span><span class="string">"2008-09-19"</span><span class="special">),</span> <span class="identifier">from_string</span><span class="special">(</span><span class="string">"2008-09-29"</span><span class="special">),</span> 
                                           <span class="identifier">interval_bounds</span><span class="special">::</span><span class="ident