There are more than 3,000 species of cockroaches in the world. In Mexico the most common are: American Cockroach, German Cockroach and Oriental Cockroach. This insect damages the food, leaving it useless. They are carriers of various viruses and bacteria, and can transmit numerous diseases to people, mainly gastrointestinal, although the cockroach is also responsible for transmitting other diseases, such as salmonellosis, dysentery, typhoid fever, bubonic plague, leprosy and hepatitis.
There are more than 50,000 species of spiders in the world. The most common in Mexico are:The jumping spider, violinist spider, Mexican red knee tarantula, red leg tarantula, pale tarantula, and black widow. This species of the arachnid family causes harm to humans with its bites, some of which are infections that can cause serious injuries. One of the most dangerous spiders is the black widow, her bite can cause intense pain, muscle spasms, chills, fever and shortness of breath.
There are about 15,000 species of ants in the world. The most common in Mexico are: The Argentine Ant, Fire Ant, Pharaoh Ant, Carpintera Ant and Pavement Ant. This insect, although not known to transmit disease-causing germs, can transmit bacteria that cause everything from infectious diarrhea to urinary tract infections.
There are more than 900 species of ticks in the world. The most common in Mexico are: The lonely star tick, black-footed tick, American dog tick, the Boophilus microplus, also called the tropic tick and the brown dog tick. The diseases they transmit are Lyme disease, rocky mountain fever or tick paralysis. The damage caused by these diseases is serious for some parts of the body such as the heart, nervous system, kidneys, adrenal glands and liver.
There are about 2,000 species of fleas in the world. The most common in Mexico are: The dog flea and the cat flea. This species of the family of arachnids causes painful bites, which later become small manifestations of reddish color or even necrotic lesions in the tissue of the affected living being. Other diseases they transmit are bubonic plague, Rickettsia and encephalitis.
There are approximately 2,280 rodent species in the world; the most common in Mexico are: Grey rat, black rat and house mouse. Rodents cause damage to food, structures, electrical wires and crops. Commonly the damage they cause is from their faeces, urine and hair. The best-known diseases transmitted by rodents to humans are Lassa fever, choriomeningitis, murine typhus, salmonellosis, leptospirosis and trichinosis.