<<< tex
\begin{array}{l@{\qquad}l}
\text{Infection/colonization episode} & \text{Waning immunity episode}\\
b^{\prime}(t) = \mu_{0}b(t) - cy(t) & b(t) = 0 
\end{array}
>>> native
[ EArray
    [ AlignLeft , AlignLeft ]
    [ [ [ EText TextNormal "Infection/colonization episode" ]
      , [ EText TextNormal "Waning immunity episode" ]
      ]
    , [ [ ESuper (EIdentifier "b") (ESymbol Ord "\8242")
        , ESymbol Open "("
        , EIdentifier "t"
        , ESymbol Close ")"
        , ESymbol Rel "="
        , ESub (EIdentifier "\956") (ENumber "0")
        , EIdentifier "b"
        , ESymbol Open "("
        , EIdentifier "t"
        , ESymbol Close ")"
        , ESymbol Bin "\8722"
        , EIdentifier "c"
        , EIdentifier "y"
        , ESymbol Open "("
        , EIdentifier "t"
        , ESymbol Close ")"
        ]
      , [ EIdentifier "b"
        , ESymbol Open "("
        , EIdentifier "t"
        , ESymbol Close ")"
        , ESymbol Rel "="
        , ENumber "0"
        ]
      ]
    ]
]