Ebola - Signs and Symptoms

Ebola first appeared in 1976 in 2 simultaneous outbreaks, in Nzara, Sudan, and in Yambuku, Democratic Republic of Congo. The latter was in a village situated near the Ebola River, from which the disease takes its name.

Key facts

• Ebola virus disease (EVD), formerly known as Ebola haemorrhagic fever, is a severe, often fatal illness in humans.
• EVD outbreaks have a case fatality rate of up to 90%.
• EVD outbreaks occur primarily in remote villages in Central and West Africa, near tropical rainforests.
• The virus is transmitted to people from wild animals and spreads in the human population through human-to-human transmission.
• Fruit bats of the Pteropodidae family are considered to be the natural host of the Ebola virus.
• Severely ill patients require intensive supportive care. No licensed specific treatment or vaccine is available for use in people or animals.

Symptoms of Ebola  typically include

• Fever (greater than 38.6°C or 101.5°F)
• Severe headache
• Muscle pain
• Weakness
• Diarrhea
• Vomiting
• Abdominal (stomach) pain
• Lack of appetite

Symptoms may appear anywhere from 2 to 21 days after exposure to ebolavirus, although 8-10 days is most common.

Some who become sick with Ebola are able to recover. We do not yet fully understand why. However, patients who die usually have not developed a significant immune response to the virus at the time of death.

For More Detail: Click

http://www.who.int/mediacentre/factsheets/fs103/en/

http://www.cdc.gov/vhf/ebola/

Causes of Breast Cancer in Human

Causes of Breast Cancer

The body's cells reproduce themselves throughout your lifetime, as tissues wear out and their cells are replaced in a controlled manner. Breast cancer - like all cancers - occurs when that control is lost and cells begin to divide at an unusually high rate.

No single trigger or cause has been identified for breast cancer. Certain risk factors exist, though, that increase a woman's chance of developing it:

1. age - it's more common in women over 50
2. family history - if a woman's mother or sister had the disease before menopause, this is occasionally associated with one of two genes linked to breast cancer
3. previous breast cancer
4. family history of ovarian cancer
5. age of pregnancy - women who haven't had children, or whose first child was born after age 30
6. age of menstruation - starting periods at a young age (under 12 years old)
7. entering menopause later (over age 55) increases breast cancer risks
8. recent research suggests that women who start smoking regularly within 5 years of the onset of their menstrual periods are 70% more likely to develop breast cancer before the age of 50 than non-smokers
9. having dense breast tissue
10. radiation treatment to the chest, especially before 30 years of age
11. alcohol consumption contributes to the risk of breast cancer
12. hormone replacement therapy (HRT; estrogen plus progesterone) increases the risk of breast cancer slightly after 5 years of therapy
13. oral contraceptives increase risks slightly, if used over many years
14. obesity with excess caloric and fat intake

The increased risks of getting breast cancer associated with the above factors are often statistically quite small. In fact, for most women, the only risk factor they have is being over 50 years of age. Any concerns should be discussed with your doctor.