Argentina alerts to dangerous mutations of pharyngitis virus

August 16, 2023 – 2:23 pm

Streptococcus pyogenes infection can cause severe tonsillitis or pharyngitis. What are the dangers of the new variant?

In 2023, Argentina saw a 281% increase in Streptococcus pyogenes cases.
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Researchers ANLIS/Malbrand Institute They investigated the number Infect By Bacteria that cause pharyngitisregistered since December last year Increase in cases and Invasive infection by streptococci in Europe, North America and Uruguay.

In Argentina, the case increased by 281% Compared with the same period in 2019, by 2023, there will be 16 people died Reported in July last year Ministry of Health.That’s why through genomic research patient samplescientists discovered a New highly virulent clones in bacteria.

This ‘clone’ is expanding rapidly in other countries and is linked to an increase in cases scarlet fever and other people’s Infect– Corresponds to new bloodlines Popular strain M1T1 (M1global).

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Streptococcus pyogenes is a bacterium with more than 80 different serotypes.

he Streptococcus pyogenes This is a bacterium that has more than 80 different serotypes.

so far, USA, Canada, Netherlands, Denmark and Australia is the country that reported the emergence of this virulent clone.

The researchers pointed out that 3 isolation Representative of discovered highly virulent M1UK clones 8% of the 36 samples studied and Streptococcus pyogenes M1 was received in the laboratory from January to June last year.

They also identified a group of seven isolates Streptococcus pyogenes The M1 gene is closely related. The expert group clarified in its previous report that the group obtained “a mobile genetic element encoding the superantigenic toxin SpeC” epidemiological bulletin Healthy Portfolio.

How the virus spreads

According to a report from the Ministry of Health, Streptococcus pyogenes happens because close contact Contact with an infected person and can spread through: coughthis sneeze or contact wound.this symptom The most common are:

  • fever
  • Sore throat or difficulty swallowing
  • swollen lymph nodes in neck
  • Local pain in a certain part of the skin
  • redness
  • small bubble

Researchers NLIS/Malbrand suggest those people Already contacted Patients with streptococcal infections should receive information about: Precaution and signs and symptoms of disease.

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