Invasive meningococcal disease is a serious bacterial infection caused by Neisseria Meningitidis. About 1 in 10 people carry this bacteria in the back of their nose and throat without getting sick, but sometimes the bacteria invades the body and causes serious illness. There are six types of Neisseria Meningitidis - A, B, C, W, and Y. Types B, C, and Y are most common in the United States.

Symptoms usually occur one to ten days after exposure, but usually less than 4 days. There are two types of infections: meningitis and septicemia that can be very serious. 

• Meningococcal Meningitis is when the bacteria infects the lining of the brain and spinal cord and causes swelling. Common symptoms include fever, headache, stiff neck, nausea, vomiting, sensitivity to light, and confusion. 
• Meningococcal septicemia is a bloodstream infection, damaging blood vessels. Common symptoms include fever, chills, fatigue, vomitting, cold hands and feet, muscle pain, and diarrhea.
• Meningoccoal disease can result in complications such as hearing loss, learning problems, loss of limbs, brain damage, and death in about 10-15% of people who are inf

Anyone can get invasive meningococcal disease, but certain people are at increased risk. For example infants, young teens and young adults, particularly those attending college or university. Those with certain medical conditions may also be at increased risk. Clusters of cases and outbreaks do occur but are rare in the United States, such as an outbreak in Florida primarily among gay, bisexual, and other men who have sex with men. 

An infected person is contagious 7 days before symptom onset and until 24 hours after starting antibiotics. The disease is spread by prolonged close contact with an infected person in which respiratory and throat secretions (saliva or spit) are shared. Some examples include:

• Close exposure to sneezing or coughing
• Prolonged exposure between people in the same household
• Direct contact with saliva through kissing or sharing eating utensils, a drinking glass, or a cigarette

It is NOT spread simply by breathing the air where a person with the disease has been, and it is NOT highly contagious.

It is NOT as contagious as the common cold or flu.

Invasive Meningococcal Disease is usually diagnosed in an ill person by laboratory identification of the bacteria from either the blood or spinal fluid. It is important to seek medical attention immediately if you develop symptoms of meningococcal disease. 

Several antibiotics can be used to treat meningococcal disease. It is important to start treatment as soon as possible because it will help reduce the risk of dying. Penicillin is still effective against the meningococcal organism and remains the recommended treatment. 

People who have been in prolonged close contact (household members, intimate contacts, health care personnel performing mouth-to-mouth resuscitation, day care center playmates, etc.) need to be considered for preventive treatment. Such people are usually advised to obtain a prescription for an antibiotic from their physician. Casual contact, as might occur in a regular classroom, office, factory, or other work setting is usually not sufficient enough to cause concern.

There are two types of vaccines that can be used to prevent illness. 

• MenACWY: All 11 to 12 year olds should get a MenACWY vaccine with a booster at 16 yers old. 
• MenB: Teens and young adults (16 through 23 years) may get a MenB vaccine. 
• Teens and adults who are at increased risk for meningococcal disease should also get vaccinated.

Due to an ongoing outbreak in the U.S., CDC., CDPH, and LBHHS recommend that meningococcal vaccine be offered to: 

• All HIV infected individuals
• All gay/MSM, regardless of HIV status, who regularly have close or intimate contact with multiple partners who seek partners through the use of digital applications ("apps"), particularly those who share cigarettes/marijuana or use illegal drugs.