An allergen is a type of antigen that produces an abnormally vigorous immune response in which the immune system fights off a perceived threat that would otherwise be harmless to the body. Such reactions are called allergies.
As per the IEBC's official results, Uhuru got 6,173,433 of the 12,221,053 valid votes cast ahead of the second placed Raila Odinga who garnered 5,340,546 (43.7%). Uhuru's result was 50.51% of the vote and was above the 50% plus 1 vote threshold set out in the 2010 constitution, thus making him the president-elect.
Looking back to the 2012 presidential election, for example, even if President Obama had lost the three swing states of Ohio, Florida and Virginia, he still would've been re-elected with 272 electoral votes to former Gov. Mitt Romney's 266.