Do you feel excited when you look at a photo with a shark? Does it ever happen that while relaxing on the coast it sometimes seems that a dark shadow suddenly floats near you in the water?
If the answer is yes, then don’t worry. In fact, the probability of a shark attacking a person is extremely small. For comparison: the probability of a lightning strike is 75 times higher.
But this does not mean that the waters of this world are not dangerous. There is something to be afraid of far more than sharks.
Cryptosporidia
These "comrades" are much more common than sharks. And they are hard to notice, even when they are nearby.
Unicellular parasites are transmitted by airborne droplets, mainly above water. Unfortunately, in the pool it is almost inevitable not to drown in water. You never know if a person who bathes is sick. Perhaps he himself does not know this.
Pools are a real repository of microbes, and those who are unlucky can meet cryptosporidia there. For example, there have been cases of closure of resort pools in hotels due to an unusually large number of infected people.
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This is a type of amoeba that is as rare as it is dangerous.
Amoebas pass through the nasal mucosa into the body and through the nerve pathways enter the brain - hence the unspoken name of “amoeba eating the brain.”
Unfortunately, there is no one hundred percent treatment option, and mortality among infected patients is 97 percent.
It is worth remembering that amoeba is found mainly in tropical countries. She feels especially comfortable in warm fresh water, hot springs and rivers. If you go swimming in the sea, you also have nothing to worry about - she does not live in salt water.
Breaking current
And in calm waters, fenders can be dangerous even for experienced swimmers.
A similar phenomenon is especially common on the coasts of the Baltic and North Seas. They are caused by a flurry of wind that breaks waves on the coast. Large volumes of water fall on the sand, and after drying, algae, stones, debris flow back into the reservoir.
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If you enter one of these streams, you will soon be carried off to the open sea. This is why strong currents are dangerous - the presence of sand and other objects that complicate a person’s exit into calm, safe waters. If you ever get into such a situation, you should not try to swim against the direction, otherwise you will quickly weaken. Instead, try to swim out of the current whirlpool to the beach, moving parallel to the current.
Cyanobacteria
Unfortunately, the spread of cyanobacteria is too extensive. Due to the pollution of rivers with artificial fertilizers, a comfortable living environment for microorganisms is created. In addition, microbes literally bloom and turn into green algae-like masses.
If you come into contact with them, then these bacterial growths can cause irritation on the skin, in the eyes and in the throat. If there is no way to change the beach or vacation spot, then at least do not swallow water. Because it can lead to headaches, vomiting, and even liver damage.
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Pseudomonas aeruginosa
Even in the jacuzzi you are not protected from dangerous bacteria. High temperature is not enough to kill bacteria, it is only enough to reduce the effects of chlorinating substances that process surfaces.
Therefore, if after taking a bath or a jacuzzi you have large acne, similar to a rash, then the Pseudomonas aeruginosa bacteria probably took water procedures with you. After 10-14 days, the rash should go away on its own.
