by Leah Chandler. Disease Etiology: Malaria is a protozoan disease, which are a group of eukaryotic single-celled organisms that infect humans and inhabit the body as parasites. Malaria is caused by four species of the protozoan genus Plasmodium, P falciparum, P vivax, P malariae, and P ovale.
The average NFL referee salary was $173,000 in 2013, and it is set to rise to $201,000 by 2019. Note that the NFL season only lasts about half the year, and for most NFL referees, refereeing is not their only job.
Select Group referees â operating mostly in the Premier League â are believed to earn a basic salary of around Â£65,000 per year, while they also receive fees in excess of Â£1,000 per game in the top flight. If they were to officiate 38 games in a season, it would bring their overall pay to more than Â£100,000.