Viruses.
All three of those infectious diseases are caused by viruses. Human Immunodeficiency Virus (HIV) is the name of the virus that causes AIDS. The common cold is usually caused by the rhinovirus (up to 40% of colds), or Coronaviruses (about 20%), but there are more than 200 viruses that can cause the common cold. Viruses also cause the flu, there are three types of human influenza viruses, Types A, B and C and many subtypes and strains of each of those types.
Common causes of a runny nose include allergies, colds, flu, sinus infections, and irritants like smoke or pollution.
Common causes of a runny nose include allergies, colds, flu, sinus infections, and irritants like smoke or pollution.
The common cold, rabies, and AIDS are all caused by different types of viral infection.
Common causes of a cough include respiratory infections like colds or flu, allergies, asthma, smoking, and environmental irritants such as pollution or dust.
common cold flu salmonella
Flu is very common in Finland, especially during the flu seasons.
same as flu and colds
Both colds and flu are caused by viruses, with colds commonly caused by rhinoviruses and flu commonly caused by influenza viruses. Both types of viruses infect the respiratory system, leading to symptoms such as coughing, sneezing, and a runny nose.
viruses. All four of those Infectious Diseases are caused by viruses. Human Immunodeficiency Virus (HIV) is the name of the virus that causes AIDS. The common cold is usually caused by the rhinovirus (up to 40% of colds), or Coronaviruses (about 20%), but there are more than 200 viruses that can cause the common cold. Viruses also cause the flu, there are three types of human influenza viruses, Types A, B and C and many subtypes and strains of each of those types.
man flu
They exist because particular flu causing germs called bacteria and viruses exist. Colds and flu are extremely common because it is contagious meaning the germs spread easily from contact with the infected person.