Health


Mammals and primates

Rhesus macaque (Macaca mulatta)

Can transmit diseases such as herpes B, tuberculosis, hepatitis A and B, salmonellosis, intestinal parasites, and SIV, posing a risk to both humans and domestic animals.

Patas monkey (Erythrocebus patas)

Transmits viruses such as SHFV, herpes B, and SIV, as well as parasites like Toxoplasma gondii and Streptopharagus armatus, representing a risk to human health and local wildlife.

Norway rat (Rattus norvegicus) and house mouse (Mus musculus)

They carry serious diseases such as leptospirosis, hantavirus, salmonellosis, and plague, and are reservoirs of parasites that can infect humans and other animals. In addition, they contaminate food and surfaces and are well-known vectors of zoonotic diseases.

Mongoose (Herpestes javanicus)

One of the main carriers of rabies on the island, representing a direct risk to humans, pets, and wildlife.

Birds

Shiny cowbird (Molothrus bonariensis)

Although its direct risk to human health is low, it can carry bacteria that cause gastrointestinal infections and fungi associated with pulmonary diseases.

Introduced reptiles and amphibians

Green iguana (Iguana iguana)

A common carrier of Salmonella, which can be transmitted to humans through contact with feces or contaminated surfaces.

Reticulated python (Malayopython reticulatus) and boa constrictor

They may carry Salmonella and other pathogens that affect reptiles and, occasionally, humans. They also represent a physical risk due to their size and strength.

Cuban tree frog (Osteopilus septentrionalis)

Its skin secretions can irritate the skin and eyes; studies in the United States have linked some specimens to the rat lungworm, a parasite that could affect human health and other species.

Crustaceans and mollusks

Australian redclaw crayfish (Cherax quadricarinatus)

By burrowing, it alters bodies of water and may carry parasites that affect fish and, potentially, humans indirectly if contaminated water or equipment is handled.

Asian clam (Corbicula fluminea)

Although its direct sanitary impact on humans is limited, it can promote the proliferation of pathogens in the water by obstructing natural water flow.

Invasive fish

Lionfish (Pterois volitans)

Its spines are venomous and cause intense pain and inflammation. In severe cases, they can lead to medical complications in humans.

Koi (Cyprinus carpio) and pleco (Pterygoplichthys multiradiatus)

They may carry parasites such as nematodes and protozoa that affect the health of native fish and may potentially contaminate water or facilitate human infections if not properly managed.

Cichlids (Herichthys spp.), Midas cichlids (Amphilophus spp.), and convict cichlid (Archocentrus nigrofasciatus)

They compete with native species and may carry the flatworm Bothriocephalus acheilognathi, which damages aquatic ecosystems and fish health.

Aquatic and terrestrial plants

Water hyacinth (Eichhornia crassipes) and water lettuce (Pistia stratiotes)

Their spread creates stagnant waters, increasing the proliferation of mosquitoes that are vectors of diseases such as dengue, Zika, and chikungunya.

Yellow acacia (Albizia lebbek), giant sensitive plant (Mimosa pellita), and niaouli (Melaleuca quinquenervia)

Although their direct impact on human health is not significant, their presence reduces biodiversity, weakens natural pest control, and alters ecosystems, which can indirectly affect public health.