Growth of pathogenic Leptospira in an artificial nutrient environment such as EMJH becomes noticeable in 4–7 days; growth of saprophytic strains occur within 2–3 days.
O crecemento de Leptospira patóxenas nun medio nutritivo artificial como o EMJH faise evidente aos 4-7 días; o crecemento das cepas saprofíticas ocorre aos 2 ou 3 días.