Rubuta ci gaba ga wannan sakin layi - Aikin ya shafi cutar kwalara ta 1854 Broad Street
Ka yi haƙuri. Manyan mutane guda biyu sune likita John Snow, wanda ya kirkiro taswirar cututtukan kwalara, da Reverend Henry Whitehead, wanda iliminsa mai yawa game da al'ummar yankin ya taimaka wajen tantance dalilin farko na barkewar cutar. Dokta John Snow sanannen likitan maganin sa barci ne wanda ya yi bincike a kan cututtuka a birnin Soho, a Landan. A tsakiyar shekarun 1850 Snow ya gano tushen gurɓatar cutar kwalara shine ruwan sha daga famfo na Broad Street.