Do flies really pose a health risk?

How dangerous are Flies?

Flies are way more dangerous than you may realise. They are associated with more than 100 diseases which is readily spread by them landing on surfaces we often touch. Because flies eat poop and garbage, they spread diseases associated with bad hygiene.

Flies are not only septic on the outside but on the inside too. They vomit on food they are about to eat and stamp it in with their feet to soften it up. This vomit is full of bad bacteria that make us humans sick.

What diseases do house flies spread?

We broke up our list into four parts. One for illness causing bacteria, fungi, one for parasites and one for viruses.

Here is a list of illness causing bacteria spread by flies:

  • Acinetobacter
  • Aeromonas
  • Alternaria
  • Burkholderia
  • Campylobacter
  • Chronobacter
  • Citrobacter
  • Clostridium
  • Corynebacterium
  • Bacillus – B. Anthrax
  • Edwardsiella
  • Enterococcus
  • Enterobacter
  • Escherichia – E. coli
  • Helicobacter
  • Klebsiella
  • Lactobacillus
  • Listeria
  • Morganella
  • Methylobacterium
  • Micrococcus
  • Providencia
  • Salmonella
  • Serratia
  • Staphylococcus
  • Streptococcus
  • Shigella
  • Pseudomonas
  • Proteus
  • Vibrio
  • Yersinia

Here is a list of disease-causing Fungi spread by house flies:

  • Alternaria
  • Aspergillus
  • Beauveria
  • Candida
  • Cladosporum
  • Curvularia
  • Chrysosporium
  • Epicoccum
  • Eupenicillium
  • Fusarium
  • Microsporum
  • Moniliella
  • Mucor
  • Mucorales
  • Mycelia
  • Nigrospora
  • Rhodotorula
  • Penicillium
  • Rhizopus
  • Scopulariopsis

This is a list of illness causing parasites spread by house flies:

  • Ascaris
  • Crytosporidium
  • Entamoeba
  • Enterobius
  • Giardia
  • Hymenolepis
  • Haematopinus
  • Hookworm
  • Metastrongylus
  • Taenia
  • Trichuris

List of illness causing viruses spread by house flies:

  • Arteriviridae
  • Filoviridae – Ebola Virus
  • Hytrosaviridae
  • Orthomyxoviridae – Avian influenza virus N5N1
  • Paramyxoviridae – New Castle disease virus
  • Picornavirus

Ok, so after going through this list you may be thinking: “There aren’t over a 100 Viruses, bacteria and fungi listed?” The answer to that question is that there are different parasite genera and under them there are different species and I did not list these species. The same is true for Bacteria also.

Why do Flies carry so many disease-causing organisms?

Except for the fact that flies feed off garbage and faeces it is also their breeding ground. So much of their life cycle is spent in unsanitary conditions it is impossible for them to be clean.

Can diseases from flies kill me?

Yes, there are a number of diseases on this list that will kill you if left untreated. Other diseases will cause discomfort and irritation to the infected person.

Here is the list of some deadly diseases spread by house flies:

  • Cholera
  • Conjunctivitis
  • Dysentery
  • Gastroenteritis
  • Salmonellosis
  • Tuberculosis
  • Typhoid fever

How do I protect my family from flies?

Good hygiene and exclusion are the best ways to prevent flies from becoming a problem in your home and business. You can read more about how to control flies here. Or contact us for an assessment of your fly problem.

Source of diseases carried by flies:

× How Can We Help?