Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); blurred vision or vision changes; chest pain; confusion; fainting; fast or irregular heartbeat; flu-like symptoms (fever, chills, sore throat); one-sided weakness; pale skin color; redness, tenderness, or swelling of the calf; seizures; severe diarrhea, dizziness, headache, stomach pain, or vomiting; severe or persistent tiredness or weakness; slurred speech; sudden pain or numbness of an arm or leg; sudden shortness of breath; sudden trouble walking or loss of balance; swelling of the arms or legs; vision or speech problems; weight gain.
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Specific occupational safety and health risk factors vary depending on the specific sector and industry. Construction workers might be particularly at risk of falls, for instance, whereas fishermen might be particularly at risk of drowning . The United States Bureau of Labor Statistics identifies the fishing , aviation , lumber , metalworking , agriculture , mining and transportation industries as among some of the more dangerous for workers.  Similarly psychosocial risks such as workplace violence are more pronounced for certain occupational groups such as health care employees, police, correctional officers and teachers.