Working in extreme weather conditions or work environments that involves enduring high temperatures, are definitely the toughest one to survive. The challenges of working in extreme temperature environments are that the body of the workers gets stressed. Most of the work environments are too warm that causes heat stress and heat stroke.
In an outbreak of viral infection, the major concern is preventing the spread of the virus because airborne diseases spread fast and easily. Earlier, the only way to safeguard yourself was to take the vaccine.