Warning: This story contains details that readers may find distressing
Mohammed Amin was eight when he died shortly after testing positive for HIV.
His fevers were so bad that he insisted on sleeping in the rain, and he writhed in pain "like he'd been thrown in hot oil", says his mother, Sughra.
"He used to fight with me, but he also loved me," 10-year-old Asma says as she kneels at her younger brother's graveside.
Not long after her brother contracted the virus, Asma was also diagnosed with HIV. Her family believe both children contracted it from injections with contaminated needles during routine medical treatment at a government hospital in Taunsa, in the province of Punjab, Pakistan.
