A 36-year-old Karachi woman, Maryam Shakeel, died after contracting Naegleria, a brain-eating amoeba found in water. Health officials confirmed that low chlorine levels in the city's water supply ...

When a T cell and an antigen-presenting cell form an immunological synapse, rapid dynein-driven translocation of the centrosome toward the contact site leads to reorganization of microtubules and ...