Symptoms usually appear within 1-14 days after infection with the bacteria. Average is within 3-5 days.

Symptoms may begin two to 10 days after becoming infected, with an average of seven days. In persons with healthy immune systems, symptoms usually last about one to two weeks. The symptoms may go in cycles in which you may seem to get better for a few days, then feel worse again before the illness ends. See similar questions...

The incubation period is variable but is normally 3 to 8 weeks. Incubation periods up to several years have been reported. Patients having severe bites or bites about the head usually have the shortest incubation periods. See similar questions...

The symptoms of a first outbreak of genital herpes usually appear 2 to 10 days after exposure to herpes and last an average of 2 to 3 weeks. With the first infection, without treatment the sores typically are active (that is, red, irritated, perhaps painful) for 1-2 weeks, then take another 7-10 days to heal completely, so total time from onset to complete healing generally pmtis 2-4 weeks. Recurrent outbreaks are briefer, typically 7-14 days. See similar questions...

Several studies have shown that inorganic arsenic can increase the risk of lung cancer, skin cancer, bladder cancer, liver cancer, kidney cancer, and prostate cancer. The World Health Organization (WHO), the Department of Health and Human Services (DHHS), and the Environmental Protection Agency (EPA) have determined that inorganic arsenic can cause cancer in humans. See similar questions...

It is important to remember that less than 1% of mosquitoes carry the West Nile virus. In rare cases where a bug bite leads to infection, that person may experience mild symptoms such as fever, headache and body aches, occasionally coupled with a skin rash and/or swollen lymph glands. More severe infections may be marked by headache, high fever, neck stiffness, stupor, disorientation, coma, tremors, convulsions, muscle weakness, paralysis and rarely, death. See similar questions...

To date, no cases of SARS have been reported among persons who were exposed to a SARS patient before the onset of the patient's symptoms. See similar questions...

After infection there is an incubation period of 2-14 (OIE) 1-21(USDA) days during which the virus multiplies. See similar questions...

Most people never develop active disease. Approximately 5-10% of infected persons will develop active TB sometime in their lifetime. Symptoms may include reduction in appetite and weight, fatigue and a productive cough (longer than 2 weeks). See similar questions...

No. Some will appear while others may not appear at all. This can cause difficulties in diagnosing meningitis, complicated by the fact that many symptoms are like the common cold. However, over and above the symptoms themselves, it will become obvious to anyone close to the sufferer that he/she is becoming VERY ill VERY quickly. See similar questions...

Symptoms usually start 1 to 3 days after coming into contact with an individual who is ill with influenza. See similar questions...

For a person who has never been infested with scabies, symptoms may take 4-6 weeks to begin. For a person who has had scabies, symptoms appear within several days. You do not become immune to an infestation. See similar questions...

Yes. If someone has hepatitis C, there are several things that can increase the likelihood that the virus will cause liver damage. Drinking alcohol (any amount) is very dangerous to a person who has hepatitis C since alcohol also causes liver damage. In HIV and hepatitis C coinfected people, the risk of developing liver damage is much higher than in those people who only have hepatitis C. See similar questions...

Inhalation: Within a few hours of inhaling significant amounts of ricin, the likely symptoms would be coughing, tightness in the chest, difficulty breathing, nausea, and aching muscles. Within the next few hours, the body's airways (such as lungs) would become severely inflamed (swollen and hot), excess fluid would build up in the lungs, breathing would become even more difficult, and the skin might turn blue. See similar questions...

The most common symptoms of asbestos exposure are coughing, coughing blood, shortness of breath, chest pain and weight loss. Unfortunately, the detectable symptoms of asbestos exposure can appear up to 25 years after exposure. Annual or even semi-annual asbestos detection tests are recommended. See similar questions...