In Nacional, a potentially deadly condition is affecting some individuals. The condition, known as alfa-gal syndrome, is an allergy to meat or dairy products. Further information about this condition is available from La Opinión.

Garrapatas, or ticks, are also known to transmit serious infections, including the disease of Lyme and the fiebre maculosa de las Montañas Rocosas, in addition to the aforementioned alfa-gal syndrome.