Other laboratory findings in Lassa fever include lymphocytopenia (low white blood cell count), thrombocytopenia (low platelets), and elevated aspartate transaminase  levels in the blood. Lassa fever virus can also be found in cerebrospinal fluid. Prevention
Control of the Mastomys rodent population is impractical, so measures focus on keeping rodents out of homes and food supplies, encouraging effective personal hygiene, storing grain and other foodstuffs in rodent-proof containers, and disposing of garbage far from the home to help sustain clean households. Gloves, masks, laboratory coats, and goggles are advised while in contact with an infected person, to avoid contact with blood and body fluids. These issues in many countries are monitored by a department of public health. In less developed countries, these types of organizations may not have the necessary means to effectively control outbreaks. Vaccine
There is no vaccine for humans as of 2019. Researchers at the United States Army Medical Research Institute of Infectious Diseases facility had a promising vaccine candidate in 2002. They have developed a replication-competent vaccine against Lassa virus based on recombinant vesicular stomatitis virus vectors expressing the Lassa virus glycoprotein. After a single intramuscular injection, test primates have survived lethal challenge, while showing no clinical symptoms. Treatment
Treatment is directed at addressing dehydration and improving symptoms. All persons suspected of Lassa fever infection should be admitted to isolation facilities and their body fluids and excreta properly disposed of. Medications
The antiviral medication ribavirin has been recommended, but evidence to support its use is weak.
Hemoptysis is the coughing up of blood or blood-stained mucus from the bronchi, larynx, trachea, or lungs. In other words, it is the airway bleeding. This can occur with lung cancer, infections such as tuberculosis, bronchitis, or pneumonia, and certain cardiovascular conditions. Hemoptysis is considered massive at 300 mL (11 imp fl oz; 10 US fl oz). In such cases, there are always severe injuries. The primary danger comes from choking, rather than blood loss. Diagnosis
Past history, history of present illness, family historyhistory of tuberculosis, bronchiectasis, chronic bronchitis, mitral stenosis, etc. history of cigarette smoking, occupational diseases by exposure to silica dust, etc. Blood
duration, frequency, amount
Amounts of blood: large amounts of blood, or is there blood-streaked sputum
Probable source of bleeding: Is the blood coughed up, or vomited? Bloody sputum
color, characters: blood-streaked, fresh blood, frothy pink, bloody gelatinous. Accompanying symptoms
fever, chest pain, coughing, purulent sputum, mucocutaneous bleeding, jaundice. Imaging examination
chest X-ray, CT scan and 3D reconstruction images or CT virtual bronchoscopy, bronchial angiography. Laboratory tests
blood test: WBC
Sputum: cells and bacterial examinations, sputum culture
Bronchial fiber endoscopy

Differential diagnosis
The most common causes for hemoptysis in adults are chest infections such as bronchitis or pneumonia. In children, hemoptysis is commonly caused by the presence of a foreign body in the airway. Other common causes include lung cancers and tuberculosis. Less common causes include aspergilloma, bronchiectasis, coccidioidomycosis, pulmonary embolism, pneumonic plague, and cystic fibrosis. Rarer causes include hereditary hemorrhagic telangiectasia (HHT or Rendu-Osler-Weber syndrome), Goodpastures syndrome, and granulomatosis with polyangiitis.