**f. Allergens in the air**

Allergens such as pollen or molds can be dangerous at certain times of the year for children and the elderly, as well as for anyone already suffering from chronic

respiratory diseases such as asthma, severe allergies or chronic obstructive pulmonary disease. In a country like Haiti, the diagnosis of these disorders may not be established due to the lack of specialists in allergology.

## **g. The global effects of climate change on human health**

It has been found that in some countries, major natural disasters have often caused severe psychological consequences for children who face such trauma. Global changes are increasing and diversifying the sources of soil and water contamination and are creating new interfaces of contact between humans, animals and their pathogens [28]. Their effects on health are generally unevenly distributed across people because the health and well-being of the population is also correlated with socio-economic factors such as income, housing, employment, education, gender and lifestyle. In addition to children, vulnerable groups include people with outdoor workplaces, the elderly, women, and those already suffering from disease or severe social inequalities [46]. Climate change also has direct impacts on the migration of people, which can be internal or national, intra-regional or international. It can have a negative impact on national economies, as the availability of food and water leads to an increasing need for humanitarian assistance and health protection for vulnerable groups [46].
