Edit my work again

Thx for the last time editing my work clive this is my artical response, where I talk about what happens and how it affects me and others and blah blah. Please anyone help me edit it my english sucks.

A nursing home at Toronto is left in terror after a mysterious outbreak that took lives of 16 seniors and 40 still in hospital is now defined as legionnaires disease (doesn’t sound right). Legionnaires disease is a form of pneumonia which can easily penetrate the respiratory system and kill those who are older than 50 years, and damage the lungs of mid-age people such as me. However this type of disease is not passed from one person to another but it can be easily spread through air or water. The seniors who were killed or infected by this disease at the nursing home are believed to be contaminated through drinking water, however this cannot be determined as of yet. Health officials are still undetermined about how did this bacteria got here in the Toronto area and how did the bacteria kill those 4 seniors in just seconds and why did it take long to kill other elderly. Many health officials are afraid that this might be the mutant version of the bacteria which mutated somewhere in the ecosystem, because all viruses or bacteria’s mutate and learn how to protect themselves from medicines and new ways to spread. If this bacteria did mutate than it can quickly learn how to spread through air and travel to our community and other communities like SARS did in the past.

don’t know what else to write, please edit it someone and feel free to change it if you want to, and any suggestion how can I write a good example what I learned from this and how it affected me.