Parainfluenza refers to a group of viruses — human parainfluenza viruses (HPIVs) — that cause common respiratory infections. This includes illnesses like colds, croup, bronchiolitis, bronchitis and pneumonia.

2024年6月5日 · HPIVs commonly cause upper and lower respiratory illnesses in infants, young children, older adults, and people with weakened immune systems, but anyone can get infected. Symptoms generally appear 2 to 6 days after infection. Signs and symptoms are similar to the common cold and can include: Other symptoms of HPIV illness may include:

Human parainfluenza viruses (HPIVs) are the viruses that cause human parainfluenza. HPIVs are a paraphyletic group of four distinct single-stranded RNA viruses belonging to the Paramyxoviridae family.

2024年6月5日 · They are enveloped RNA viruses. There are four types (1 through 4) and two subtypes (4a and 4b) of HPIVs. The clinical and epidemiological features for each HPIV type can sometimes vary. In the United States, infections associated with HPIV-1 …

2024年12月4日 · Human parainfluenza viruses cause respiratory infections. They are most common in children. There are four different types of human parainfluenza viruses: HPIV-1, HPIV-2,...

2023年5月30日 · There are four types of human parainfluenza viruses (HPIVs), which all cause respiratory infections. Most people get better without treatment, but the viruses can sometimes cause severe illness.

2023年7月17日 · The human parainfluenza virus (HPIV) is an enveloped, negative-sense, single-stranded RNA virus that belongs to the family of Paramyxoviridae. It is classified into four serotypes numbered from 1 to 4 (HPIV-1, HPIV-2, HPIV-3, and HPIV-4).

Parainfluenza virus type 3 is one of a group of common viruses known as human parainfluenza viruses (HPIV) that cause a variety of respiratory illnesses. Symptoms usually develop between 2 and 7 days from the time of exposure and typically resolve in 7-10 days. Symptoms may include fever, runny nose, and cough.

Human parainfluenza viruses (HPIVs) are a group of viruses that cause different types of respiratory infections and are most common in children and babies. Most HPIVs usually cause infections of the upper airway, such as a common cold, ear infections, or sore throat.

What are human parainfluenza viruses? Human parainfluenza viruses (HPIVs) cause illnesses that affect the respiratory (breathing) system. These illnesses are commonly known as a cold and the croup. They occur most often in young children. The viruses can cause infections to return at any time of life. There is no vaccine to protect you from HPIVs.