DawnEN
Some respite in Sisyphean quest to end polio in Karachi
<p>KARACHI: They are foot soldiers. Their only weapon: polio drops in a small blue icebox with an ice pack to keep the vaccine cool, even though they themselves may be sweating and exhausted in the scorching heat.</p> <p>These health workers (mostly women as they are allowed inside homes) fight for the eradication of polio in Pakistan, one of only two polio-