rna virus

RNA Virus

RNA virus is a virus that has ribonucleic acid (RNA) as its genetic material. RNA virus is mostly single-stranded RNA (ssRNA)  and less common be double-stranded (dsRNA).

1. Picornaviridae family

Small RNA virus, cause commond cold and poliomyelitis.

For example;

Polio virus

Echo virus

Rhinovirus

2. Orthomyxoviridae family

Includes influenza virus causing influenza (bird flue) and seasonal flue.

For example; influenza virus type A, B, C etc.

3. Paramyxoviridae family

Causing respiratory infections; measles, mumps in infants and children.

4. Togaviridae family

Mainly cause rubella and chickungunya infection (transmitted by mosquitoes bite from human to human).

5. Flaviviridae family

Cause (insect) arthropod borne Infections.

Mosquito and ticks transmitted. These Infections cause hemorrhagic reaction including dengue and yellow fever called arbovirus.

6. Bunyaviridae family

Largest group of insect borne disease.

7. Rhabdoviridae family

Bullet shaped virus causes rabies.

8. Reoviridae family

Contains rotavirus and is responsible for number of cases of diarrhoea and childhood diarrhoea cases.

9. Coronaviridae family

Have club shaped projection on surface, also cause viral disease called SARS.

10. Retroviridae family

Contain RNA viruses and converts RNA to DNA for replication.

For example; HIV virus