The Top 10 Deadliest Diseases and his Symbol
1. HIV/AIDS
The symptoms of HIV/AIDS can vary from person to person and can be similar to the symptoms of other illnesses. The early stages of HIV infection, known as acute HIV infection, may include flu-like symptoms such as:
- Fever
- Headache
- Muscle aches
- Sore throat
- Rash
- Fatigue
- Swollen lymph nodes
These symptoms may appear within 2 to 4 weeks after infection and last for a few days to several weeks. However, some people may not experience any symptoms during this stage.
After the acute stage, HIV can enter a stage called asymptomatic HIV infection, during which a person may not have any symptoms for many years, but the virus is still actively replicating and damaging the immune system.
As the virus progresses, symptoms can develop due to the weakening of the immune system, such as:
- Persistent swollen lymph nodes
- Chronic fatigue
- Yeast infections
- Recurrent vaginal herpes infections
- Night sweats
- Diarrhea
- Weight loss
It's important to note that only an HIV test can confirm an HIV infection. It's recommended that everyone between the ages of 13 and 64 get tested for HIV at least once as a part of routine health care, and those at an increased risk should be tested more frequently.
2. Tuberculosis
The symptoms of Tuberculosis (TB) can vary depending on the type of TB and the area of the body affected. The most common symptoms of TB include:
- A persistent cough that lasts for three or more weeks
- Coughing up blood or phlegm
- Chest pain
- Fatigue
- Weakness or loss of appetite
- Weight loss
- Chills and fever
- Night sweats
Other symptoms may include:
- Swelling in the neck
- A hoarse or weak voice
- Pain in the abdomen
- Joint pain
- Bone pain
- Lumps or sores on the skin
It's important to note that many of these symptoms can also be caused by other illnesses, and a diagnosis of TB should be confirmed by a healthcare professional.
3. Malaria
The symptoms of malaria can vary depending on the species of parasite causing the infection and the person's immune response. Symptoms of malaria typically appear within 7 to 30 days after being bitten by an infected mosquito, but it can take as long as several months for symptoms to appear.
The most common symptoms of malaria include:
- Fever
- Chills
- Sweating
- Headaches
- Muscle pain
- Nausea
- Vomiting
Additional symptoms can include:
- Anemia (from the destruction of red blood cells)
- Jaundice (yellowing of the skin and eyes due to liver dysfunction)
- Enlarged spleen
- Respiratory distress
- Seizures
- Coma
Symptoms of malaria can appear similar to symptoms of other illnesses, such as the flu. It's important to seek medical attention if you have been in an area where malaria is present and you develop symptoms of fever or flu-like illness. A blood test can confirm a malaria infection.
4. COVID-19 (since 2019)
The symptoms of COVID-19, caused by the novel coronavirus, can vary from person to person and range from mild to severe. Some people may not have any symptoms at all, while others may become critically ill. The most common symptoms of COVID-19 include:
- Fever or chills
- Cough
- Shortness of breath or difficulty breathing
- Fatigue
- Muscle or body aches
- Headache
- New loss of taste or smell
- Sore throat
- Congestion or runny nose
- Nausea or vomiting
- Diarrhea
Additional symptoms can include:
- Conjunctivitis (pink eye)
- Skin rashes
- Swelling in the legs
- Chest pain
It's important to note that not all people with COVID-19 will have all of these symptoms, and some people may have symptoms that are not listed here. If you have been in contact with someone with COVID-19 or have recently traveled to an area with known community spread, it's important to get tested and self-quarantine if you develop symptoms.
5. Ebola
The symptoms of Ebola virus disease (EVD) can appear anywhere from 2 to 21 days after infection, with an average of 8 to 10 days. The symptoms of EVD are similar to those of other infectious diseases, such as fever, fatigue, and muscle pain, making it difficult to diagnose in the early stages. The symptoms of EVD include:
- Fever
- Fatigue
- Headache
- Muscle pain
- Sore throat
- Weakness
Additional symptoms can include:
- Diarrhea
- Vomiting
- Abdominal pain
- Unexplained bleeding or bruising
- Rash
- Red eyes
- Conjunctivitis
As the disease progresses, the symptoms can become more severe, such as:
- Difficulty breathing
- Chest pain
- Seizures
- Coma
- Kidney and liver dysfunction
- Blood clotting disorders
It's important to note that not all people with EVD will have all of these symptoms, and some people may have symptoms that are not listed here. If you have been in contact with someone with EVD or have recently traveled to an area with an outbreak, it's important to seek medical attention and get tested if you develop symptoms.
6. Dengue Fever
Dengue fever is a viral illness caused by a mosquito-borne virus. The symptoms of dengue fever can appear within 3 to 14 days after being bitten by an infected mosquito. The symptoms can vary from mild to severe and can be similar to those of other illnesses, such as the flu.
The most common symptoms of dengue fever include:
- High fever
- Severe headache
- Pain behind the eyes
- Joint and muscle pain
- Fatigue
- Nausea
- Vomiting
- Skin rash
- Loss of appetite
Additional symptoms can include:
- Abdominal pain
- Diarrhea
- Cough
- Conjunctivitis
- Sore throat
- Swollen lymph nodes
- Low white blood cell count
Some people with dengue fever may develop a more severe form of the disease called dengue hemorrhagic fever (DHF), which can be life-threatening. Symptoms of DHF include:
- Bleeding from the gums or nose
- Bruising easily
- Blood in the vomit or feces
- Rapid breathing
- Difficulty breathing
- Cold, clammy skin
It's important to note that not all people with dengue fever will have all of these symptoms, and some people may have symptoms that are not listed here. If you have been in an area where dengue fever is present and you develop symptoms of fever or flu-like illness, it's important to seek medical attention and get tested.
7. Yellow Fever
Yellow fever is a viral illness caused by a mosquito-borne virus. The symptoms of yellow fever can appear within 3 to 6 days after being bitten by an infected mosquito. The symptoms can vary from mild to severe and can be similar to those of other illnesses, such as the flu.
The most common symptoms of yellow fever include:
- High fever
- Severe headache
- Muscle pain
- Back pain
- Nausea
- Vomiting
- Fatigue
Additional symptoms can include:
- Loss of appetite
- Abdominal pain
- Diarrhea
- Cough
- Conjunctivitis
- Sore throat
- Swollen lymph nodes
Some people with yellow fever may develop a more severe form of the disease called yellow fever hepatitis, which can be life-threatening. Symptoms of yellow fever hepatitis include:
- Jaundice (yellowing of the skin and eyes)
- Abdominal pain
- Vomiting blood
- Blood in the urine
- Decreased urine output
- Confusion
- Coma
It's important to note that not all people with yellow fever will have all of these symptoms, and some people may have symptoms that are not listed here. If you have been in an area where yellow fever is present and you develop symptoms of fever or flu-like illness, it's important to seek medical attention and get tested.
8. Leprosy
Leprosy, also known as Hansen's disease, is a chronic infectious disease caused by the bacteria Mycobacterium leprae. The symptoms of leprosy can take several years to appear after initial infection and can vary depending on the type of leprosy and the person's immune response.
The most common symptoms of leprosy include:
- Numbness or weakness in the hands and feet
- Loss of sensation to touch, heat, and cold
- Muscles weakness or paralysis in the hands, feet, or face
- Skin sores or ulcers, especially on the cooler areas of the body such as the hands, feet, and face
- Enlarged nerves, particularly near the elbow and knee
- Dry, scaly skin patches, with a loss of eyebrows or eyelashes
Additional symptoms can include:
- Reddish-brown skin patches
- Thicker skin on the affected areas
- Disfigurement of the face and hands
- Blurred vision
- Breathing difficulties
It's important to note that not all people with leprosy will have all of these symptoms and some people may have symptoms that are not listed here. If you suspect you may have leprosy, it's important to seek medical attention as soon as possible, as early diagnosis and treatment can prevent the progression of the disease and complications.
9. Cholera
Cholera is an acute diarrheal illness caused by the bacterium Vibrio cholera. The symptoms of cholera can appear within a few hours to 5 days after infection and can range from mild to severe.
The most common symptoms of cholera include:
- Watery diarrhea (may contain mucus and blood)
- Sudden onset of severe dehydration (dry mouth, sunken eyes, wrinkled skin, low blood pressure)
- Nausea and vomiting
- Abdominal cramps
- Rapid heartbeat
- Low urine output
Additional symptoms can include:
- Muscle cramps
- Restlessness
- Fatigue
- Dizziness
- Headache
It's important to note that not all people with cholera will have all of these symptoms and some people may have symptoms that are not listed here. Severe dehydration can be life-threatening if left untreated, so it's important to seek medical attention immediately if you suspect you have cholera or have recently traveled to an area where cholera is present and you develop symptoms of diarrhea or dehydration.
10. Measles
Measles is a highly contagious viral illness caused by the measles virus. The symptoms of measles can appear within 7 to 14 days after infection.
The most common symptoms of measles include:
- High fever
- Cough
- Runny nose
- Conjunctivitis (red, watery eyes)
- Koplik's spots (small, white spots with a blue-white center inside the cheeks)
- A rash that starts on the face and spreads to the rest of the body
Additional symptoms can include:
- Swelling of the lymph nodes
- Aches and pains
- Fatigue
- Loss of appetite
As the disease progresses, the symptoms can become more severe, such as:
- Diarrhea
- Vomiting
- Ear infection
- Bronchitis
- Pneumonia
- Encephalitis (inflammation of the brain)
It's important to note that not all people with measles will have all of these symptoms, and some people may have symptoms that are not listed here. If you have been in contact with someone with measles or have recently traveled to an area with known outbreaks, it's important to seek medical attention and get tested if you develop symptoms.