Latest update on cases of Clade Ib mpox
Published 31 January 2023
As of 31 January 2023, there have been 2 cases of Clade Ib mpox virus infection confirmed in England. Both cases were acquired through travel to West Africa.
Clade Ib is a strain of the mpox virus that was first identified in West Africa in 2022. It is one of 2 main strains of the mpox virus that are currently circulating globally.
The other strain, Clade IIb, is the strain that was responsible for the outbreak of mpox in the UK in 2022.
Clade Ib is thought to be less severe than Clade IIb. However, it is important to note that all strains of the mpox virus can cause serious illness.
The symptoms of mpox include:
- fever
- headache
- muscle aches
- backache
- swollen lymph nodes
- rash
The rash usually starts on the face and then spreads to other parts of the body. It can look like chickenpox or smallpox.
Mpox is spread through close contact with an infected person. This can include touching their skin, sharing their bedding or clothing, or being coughed or sneezed on by them.
The incubation period for mpox is usually between 5 and 21 days. This means that it can take up to 21 days for symptoms to develop after exposure to the virus.
There is no specific treatment for mpox. However, the symptoms can be treated with supportive care, such as pain relievers and fluids.
The mpox vaccine is effective in preventing infection with both Clade Ib and Clade IIb. It is recommended that people who are at high risk of exposure to mpox get vaccinated.
Advice for travellers
Travellers to West Africa should be aware of the risk of mpox and take steps to avoid infection. This includes:
- avoiding contact with people who are infected with mpox
- washing your hands frequently with soap and water
- not sharing bedding or clothing with anyone
- avoiding contact with animals that may be carrying the virus
Travellers who develop symptoms of mpox after returning from West Africa should seek medical attention immediately.
Latest update on cases of Clade Ib mpox
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