An acute viral infection found in the tropics, especially in West Africa. Lassa fever is caused by a single-stranded RNA virus that is animal borne (zoonotic). Lassa fever can cause a potentially fatal illness, is highly contagious, and can rapidly spread. The reservoir, or host, of the Lassa virus is a rodent known as the ‘multimammate rat.’ People can become infected by eating this infected rat or by eating food contaminated by the rat’s excretions. Person-to-person transmission also occurs via direct contact, contamination of skin breaks with infected blood, and aerosol spreads (virus particles moving through the air). The first symptoms typically occur 1 to 3 weeks after the patient comes into contact with the virus and may include high fever, sore throat, cough, eye inflammation (conjunctivitis), facial swelling, pain behind the breastbone, back pain, abdominal pain, vomiting, diarrhea, and general weakness that lasts for several days. The antiviral drug ribavirin is used for treatment along with supportive care.
- Lassa virus
Lassa fever; and Casals-Ariet, Jordi.
Weakness, weariness, listlessness, exhaustion, lethargy. For example, the patient complained of lassitude. From Latin lassitudo, from lassus meaning weary.
- Last menstrual period
By convention, pregnancies are dated in weeks starting from the first day of a woman’s last menstrual period (LMP). If her menstrual periods are regular and ovulation occurs on day 14 of her cycle, conception takes place about 2 weeks after her LMP. A woman is therefore considered to be 6 weeks pregnant 2 weeks […]
- Late infantile neuroaxonal dystrophy
1. In anatomy, the side of the body or a body part that is farther from the middle or center of the body. Typically, lateral refers to the outer side of the body part, but it is also used to refer to the side of a body part. For example, when referring to the knee, […]